Firefox Keyboard Shortcuts

Firefox is the second most popular web browser in the world and it continues to gain popularity and market share. With this rapid growth many users, especially new users, are not aware of the wide range of useful Firefox keyboard shortcuts available. These small combinations of keystrokes when used at the right time can be real productivity boosters. Here are 30 Firefox keyboard shortcuts to help simplify and speed up your daily browsing. Even Firefox veterans may find these useful.

Many of the shortcuts will be a combination of keystrokes. For example “Ctrl + C” means that you should hold down the Ctrl (control) key and press the letter “C”. Use the lowercase letters not uppercase, if using the shift key is need it will be indicated as “Shift”.

Page Navigation Shortcuts

These shortcuts allow you to navigate quickly around a web page, most with only a single keystroke.

* Spacebar — Page down one full screen at a time
* Shift – Spacebar — Page up one full screen at a time
* Down Arrow – Scroll down
* Page Down — Page down one full screen at a time
* Up Arrow – Scroll Up
* Page Up — Page up one full screen at a time
* End – Go to the Bottom (end) of the page
* Home – Go to the Top of page

Pages, Tabs and Bookmarks

These useful shortcuts help you quickly perform different common tasks within Firefox, manage Tabs and access bookmarks.

* F5 — Reload the current page
* Alt + Home — Go to home page
* Ctrl + L — Go to the Address bar
* Ctrl + K — Go to the search box
* Ctrl + = — Increase the text size, zoom in
* Ctrl + - — Decrease the text size, zoom out
* Ctrl + P — Print the current page
* Ctrl + H — Opens the Browsing History in a column on the left
* Ctrl + T — Open a new tab
* Ctrl + W — Close current tab
* Ctrl + Tab — rotate forward to the next tab
* Ctrl + Shft + Tab — rotate back to the previous tab
* Ctrl + 1-9 — Choose a number to jump to that specific tab
* Ctrl + B — Open Bookmarks Column on Left
* Ctrl + I — Close Bookmarks Column
* Ctrl + D – Create a bookmark for the current page

Mouse Shortcuts

Here are six mouse-related shortcuts for when you already have your hand on the mouse. These shortcuts include the scroll wheel and utilize the clicking function (middle click) of the scroll wheel.

* Shift – scroll down – Go to the previous page
* Shift – scroll up – Go to the next page
* Ctrl – scroll up — Decrease the text size, zoom out
* Ctrl – scroll down — Increase text size, zoom in
* Middle click on link — Open the link in a new tab
* Middle click on a tab — Close the tab

Keystroke shortcuts have been around for many years and Firefox takes useful browser shortcuts to a new level. It may take a little adjusting to get used to using shortcuts but once you do they’ll become second nature for speeding up your web browsing.

9 Steps to help in keeping your organization Secure

9 Steps to help in keeping your organization Secure

The following are a few Anti-Hacking tips that will help in keeping your systems secure.

1. Install Anti-Virus software and ensure that it’s regularly updated.(If you do only one thing to help protect the safety of your computing environment, always take prompt advantage of software updates).

2. Anti-virus software isn’t enough – it’s also a good idea to install firewall (Good fences make good neighbors) software which will help prevent unauthorized incoming and outgoing communications from your computer while connected to the Internet.

3. Passwords protect the settings on the software so no-one else can alter protection levels. Most anti-virus programs also offer some protection against Trojans, which aren’t actually a virus, but a small program that allows others to control your computer.

4. Turn off your preview window in your email program. Some viruses, called worms, can infect your system without you clicking on attachments – just by you having your preview window open. Some worms can cause your sensitive information and documents to be transmitted to millions of people. Be very cautious in opening attachments, even if it appears to come from someone you know – their system may be infected.

5. Disconnect your computer from the Internet when not in use. The longer you are connected to the Internet, the more opportunity you give for persons to gain unauthorized access.

6. If your computer is used by others, carry out regular examination of the software on it and research any software that you discover that you haven’t installed yourself. It’s safest to make it a policy not to allow any software to be installed without your permission.

7. If you must store usernames and passwords on your system, ensure they are contained in a document that is password protected. It is safest not to store anypasswords on your computer. Don’t let Windows “remember” passwords for you.Passwords should always be more than 8 characters long and include upper and lower case letters, numerals, symbols.

8. Ensure that you log out of online services properly. Failure to do so can allow others who use your computer to gain access to those services and you can be blamed for their activities.

9. Back up your files and store them away from your computer. Frequent backups just make good sense. The more virulent types of attacks damage or infect your hard drive and you can lose valuable personal information. By backing up your data weekly you can help protect your important files, computer settings, and irreplaceable digital media.

5 Chrome Extensions for more Safe and Secure Browsing

No doubt, Google Chrome is a best, fast and secure web browser! But it never hurts to bolster your defenses, and there are plenty of good chrome extensions for doing just that over in the officialGoogle Chrome Extensions Gallery. Today we are compiling a list of five chrome extensions for more safe and secure browsing experience.

WOT chrome extension



The WOT chrome extension is a safe surfing tool for your browser. Traffic-light rating symbols show which websites you can trust for safe surfing, shopping and searching on the web.
WOT ratings are powered by a global community of millions of trustworthy users who have rated millions of websites based on their experiences.



The WOT extension provides reputation ratings to search results when you use Google, Yahoo!, Bing, Wikipedia and other popular sites, helping you protect your computer and personal information. Your online email account – Google Mail, Yahoo! Mail and Hotmail is also protected.

View Thru chrome extension

There are infinite links floating around you on internet, but they can also be a big threat to your safety. This chrome extension will expand short URLs and display the full URL as a tool tip over the short URL, which includes the title of the destination page and its unshortened URL.. Short URLs from *****, *****, ff.im, goo.gl, is.gd, nyti.ms, ow.ly, post.ly, su.pr and ******.com are supported.

McAfee SiteAdvisor chrome extension

If you don't recognize the WOT chrome extension and aren't sure about its ratings, you may well want to check out McAfee's Site Advisor extension. This extension will be based on McAfeeSiteAdvisor and will warn / inform you about the ratings of the page you are visiting. unlike WOT, Site Advisor doesn't display ratings next to all the links on a page and it will only prevent access to untrusted sites
If you choose not to load the exploit url(Options page), it will be automatically re-directed to Siteadvisor, where you can see the full details about the website you are about to visit.

FlashBlock chrome extension



FlashBlock chrome extension automatically blocks flash content on webpages but if you need flashon some particular sites then you can also create a whitelist of allowed websites via a configuration panel. Each flash element is being replaced with a placeholder that allows you to load only selected elements on a given page.

FlashBlock chrome extension also helps with lowering memory usage, reducing cpu cycles, and can be used as an alternative to AdBlock. It works completely locally, and does not read,use,load or transmit any data, thus guarantees user privacy and safety.


KB SSL Enforcer chrome extension



Many popular Web sites offer secure SSL encrypted versions of their login pages, but they don't send users there by default. If you'd prefer to see the lock icon and https:// at the start of your Omnibar, before typing your details into any site, check out this extension. It has some great features such as: Automatically detects if a site supports SSL (TLS) and redirects you to it, Flexible options for overriding the auto-detection, Caches which sites support SSL (respects incognito mode).

4 Firefox Addons to Ease your Life

4 Firefox Addons to Ease your Life

I’ve experienced 100s of Firefox add-ons, and have whittled them down to about two dozen I use on a regular basis — even out of these, I have favorites. Here are 4 I find both casuallyenjoyable and sheerly indispensable; I hope they add value to your browsing. Even if you’ve heard of them before, I share specific reasons why they’re so useful + fun (usefun!). All are compatible with the wonderful Firefox 3.

1. DownloadHelper

Ever wanted to download Flash videos from YouTube or another site and found yourself frustrated by sluggish web conversion utilities?

This add-on keeps rocketing in popularity, and with good reason: it simplifies the process of downloading multimedia with a couple clicks. It can be as easy as opening a movie-playing page, clicking the toolbar icon, and selecting the file to download. Moments later, it’ll be on your hard drive.

The interface is a bit odd at first, but once you get up to speed, it’s a breeze. I use this for archiving FLV copies of videos I’ve created — please don’t do bad things with it.

https://addons.mozilla.org/en-US/firefox/addon/3006/

2. Picnik

Picnik has saved me a tremendous amount of time by removing wasteful steps in my workflow. This add-on provides an easy path to visually send a webpage into my fave online Picnik image editor (many features are free) so it can be cropped and edited with delicious effects, then posted on your blog, Flickr, another photo-sharing site, or even saved back to your hard drive. For that reason alone, it has a halo appeal for bloggers who need webpage screenshots… fast!

Before, I suffered with saving screen captures to disk, then Photoshopping them because most lesser editors are too limited on the tasty eye candy. But Picnik has a fine balance of both, and enables the process to take place totally online.

https://addons.mozilla.org/en-US/firefox/addon/4889/

3. ScrapBook

Perhaps you desire to capture a webpage’s appearance, not as a static image but as an annotable file? ScrapBook will do that and more for you: it can cache whole webpages or parts of them for later review, then you can add notes and sort your clippings into folders.

This is terribly handy if you’re on a laptop and want to save some offline reading material for when you get on a plane or train.

https://addons.mozilla.org/en-US/firefox/addon/427/

4. Tree Style Tab

Arguably, I may’ve saved the best and most un-obvious for last. Tabs are a fundamental and common feature in every popular web browser, but they’re often positioned horizontally. If you’re a frequent tabber, instead of messing around with proportionally-shrinking or even multi-row horizontal tabs, wouldn’t you like to be able to have a long list of vertical tabs? Even better, you can expand/collapse these into trees, change the width of their titles on-the-fly (or lock the width), and tweak the nitty-gritty details. Also, on the rare occasion should you want to revert to horizontal tabs, Tree Style Tab gives you that power too.

Once I transitioned to vertical tabs, I never looked back: vertical tabs are far easier to manage and sort, exponentially boosting my effectiveness and allowing me to make far more use of Firefox’s “Open All in Tabs”, since the tree-view helps keep clutter down.

https://addons.mozilla.org/en-US/firefox/addon/5890/

4 Applications That You Do Not Know

Most computer users are happy with what they got. They use the same set of computerprograms day in day out without spending a thought on the thousands of softwareprograms that might be better suited for their needs. The majority are using the sameprograms. Winamp for music, Firefox for web browsing, Windows Media Player for videos, iTunes for managing the music collection, Gmail for email and so on. The following article will review four applications that you probably never heard about before that might replace installed applications or improve your computer experience in other ways.

1. F.Lux



I reviewed the computer monitor lighting solution a while ago and it is actually one of the few applications that run all the time on my main computer system. Flux changes the brightness color temperature of the computer display automatically. It uses a 24 hour graph to visualize the changes. The color temperature will be normal throughout the day and be lowered automatically as the day passes to adjust to the real world. You will love this application if you have to look at (to) bright computer screens especially in the evening and at night.



2. Speedfan



Speedfan is an interesting application to monitor system temperatures and control fan speeds. Users run usually in two scenarios. The first group thinks that their computersystem makes to much noise while the second has to fight high temperatures that can lead to crashes and data loss. Speedfan can help both groups. It can lower the fan speed of connected computer fans automatically to reduce the overall noise level of thecomputer system. It can also warn the user if temperatures are reached that can cause damage and problems.

3. Drive Namer



Drive Namer is an excellent application to add names to optical drives such as DVD or CD drives. Windows is blocking the name changing on those drives by default which gets confusing if more than one optical drive is installed or virtual drives are used. All of the drives will be named DVD Drive or CD Drive. Drive Namer can change that name to something practical that helps identifying the drive at first glance.

4. Deltacopy



Windows Backup Software Deltacopy is a sophisticated backup software program that uses a client server approach which makes it ideal for computers located in a network.

35 Funny Computer Viruses

35 Funny Computer Viruses (OH NOES) Not Useful but funny 

1. PAUL REVERE VIRUS: This revolutionary virus does not horse around. It warns you of impending hard disk attack -- once if by LAN, twice if by C:.2. POLITICALLY CORRECT VIRUS: Never calls itself a "virus," but instead refers to


itself as an "electronic microorganism."3. KATE GOSSELIN VIRUS: Keeps changing its appearance and refuses to go away, even after no one cares whether or not it is still present.4. MARIO CUOMO VIRUS: It would be a great virus, but it refuses to run.5. OPRAH WINFREY VIRUS: Your 200MB hard drive suddenly shrinks to 80MB, and then slowly expands back to 200MB. Also tries to take over all media on your computer.6. AT&T VIRUS: Every three minutes it tells you what great service you are getting.7. THE VERIZON WIRELESS VIRUS: Every three minutes it reminds you that you're paying too much for the AT&T virus.8. TED TURNER VIRUS: Colorizes your monochrome monitor.9. ARNOLD SCHWARZENEGGER VIRUS: Terminates and stays resident. It'll be back.10. GOVERNMENT ECONOMIST VIRUS: Nothing works, but all your diagnostic softwaresays everything is fine.11. 2012 VIRUS: Probably harmless, but it makes a lot of people really uncomfortable just thinking about it.12. FEDERAL BUREAUCRAT VIRUS: Divides your hard disk into hundreds of little units, each of which does practically nothing, but all of which claim to be the most important part of the computer.13. GALLUP VIRUS: Sixty percent of the PCs infected will lose 38 percent of their data 14 percent of the time (plus or minus a 3.5 percent margin of error).14. TIGER WOODS VIRUS: Corrupts 121 different files on your hard drive while claiming to be corrupt just one.15. TEXAS VIRUS: Makes sure that it's bigger than any other file.16. ADAM AND EVE VIRUS: Takes a couple of bytes out of your Apple.17. MICHAEL JACKSON VIRUS: Hard to identifiy because it is constantly altering its appearance. This virus won't harm your PC, but your nose may fall off.18. CONGRESSIONAL VIRUS: The computer locks up, screen splits with a message appearing on each half blaming the other side for the problem.19. AIRLINE VIRUS: You're in Dallas, but your data is in Singapore.20. FREUDIAN VIRUS: Your computer becomes obsessed with its own motherboard.21. PBS VIRUS: Your PC stops every few minutes to ask for money.22. ELVIS VIRUS: Your computer gets fat, slow, and lazy and then self destructs, only to resurface at shopping malls and service stations across rural America.23. DR. CONRAD MURRAY VIRUS: Turns your printer into a document shredder.24. NIKE VIRUS: Just Does It!25. SEARS VIRUS: Your data won't appear unless you buy new cables, power supply, and a set of shocks.26. JIMMY HOFFA VIRUS: Nobody can find it.27. CONGRESSIONAL VIRUS II: Runs every program on the hard drive simultaneously, but doesn't allow the user to accomplish anything.28. KEVORKIAN VIRUS: Helps your computer shut down whenever it wants to.29. TILA TEQUILA VIRUS: Is completely irrelevant and no one cares about it. Tries to launch new sites in your browser.30. STAR TREK VIRUS: Invades your system in places where no virus has gone before.31. HEALTHCARE VIRUS: Will take your anti-virus software and share it with any other PC's in the neighborhood that lack protection.32. GEORGE W. BUSH VIRUS: No one knows what this virus does as it is completely unintelligible.33. CLEVELAND INDIANS VIRUS: Makes your 486/50 machine perform like a 286/AT.34. LAPD VIRUS: It claims it feels threatened by the other files on your PC and erases them in "self-defense."35. BALTIMORE ORIOLES VIRUS: Will cause your PC to make frequent mistakes and come in last in the reviews, but you still try to love it anyway.

28 Coolest Firefox About:Config Tricks

28 Coolest Firefox about:Config Tricks

You may have installed countless add-on in Firefox to enhance your usingexperience, but if you want to get the most out of Firefox, you really have to hackyour way into the about:config.
about:config page contains most (if not, all) of Firefox configuration options. It is so far the most effective, and the most powerful way to tweak and enhance yourFirefox performance. Here are 28 of the popular tweaks.Accessing your about:config pageIn your Firefox, type about:config in the address bar.
You will be shown a warning page. Click the “I’ll be careful, I promise!” button toproceed.

The 

On the main page, you will see a long list of configuration entries. Enter the name of the key you want to update in the “Filter” field. The list will narrow to only the entries that match your keyword as you type.To modify the value, simply double click on the entry value field and update the entry. That’s all!

Isn’t that simple? Now, let’s get to the tweaking.1) Adjust the Smart Location Bar’s Number of Suggestions

In Firefox 3, when you start typing in the location bar, a drop-down list of suggestion URLs will be shown. If you want it to show more than 12 suggestions (12 is the default), you can adjust the browser.urlbar.maxRichResults keys and get it to show the number you want.

Config name: browser.urlbar.maxRichResults
Default: 12
Modified value: Set to your desired number of suggestion. If you want to disable it all together, set it to -1
2) Disable the session restore function

Firefox 3 automatically saves your session every 10 secs so that whenever it crashes, it can restore all your tabs. While this is a useful feature, some of you might find it irritating. To disable this function, toggle the value of browser.sessionstore.enabled to False
Config name: browser.sessionstore.enabled

Default: True
Modified value: False if you want to disable the session restore function
3) Adjust the Session Restore Saving Frequency

Same as above, if you decided to keep the session restore feature on, but want to reduce the session saving frequency, change the value of browser.sessionstore.interval so that Firefox will save the session at a longer interval.

Config name: browser.sessionstore.interval
Default: 10000 (in msecs, equivalent to 10secs)

Modified value: Set it to your desired value. 1000 means 1 sec and 60000 means 1 minute.4) Enable Advanced Color Profile Support

Firefox has this advanced color profile features that display higher image quality. It is not enabled by default as it has a negative effect on the performance of the browser. If you are concern with the image quality rather than the performance, you can activated it via the gfx.color_management.enabled setting

Config name: gfx.color_management.enabled
Default: False

Modified value: True (if you want to activate the color profile support feature)5) Disable Antivirus Scanning

This is mainly for Windows users. By default, Firefox 3 automatically scan the downloaded file with the default anti-virus application to make sure it is free of virus. If you download a big file, it could take a long time for the whole scanning process to complete. To increase the performance of the browser, you might want to consider disabling the anti-virus scanning via the browser.download.manager.scanWhenDone key.

Config name: browser.download.manager.scanWhenDone

Default: True

Modified value: False (if you want to disable it)6) Configuring The Scrolling Tabs

When you opened many tabs, Firefox will not keep on reducing the tab width. Instead, it shows a scrolling bar so that the min width (100px) is conserved and you can scroll to find your tabs. If you are those who don’t like the scrolling tab function and preferFirefox to show all the tabs, regardless how small it is, you can set the value ofbrowser.tabs.tabMinWidth to 0 to disable it. Similarly, if you want Firefox to display more tabs before showing the scrolling button, you can reduce the default value to a lower value, say 75 pixels.

Config name: browser.tabs.tabMinWidth
Default: 100

Modified value: 0 if you want to disable the scrolling functions, other values to set the min width value7) Show/Disable Close button on Tabs

Some people love to see the Close (the red X) button on every tabs, but some hate it. Whatever is it, you can configure it to your preferences via thebrowser.tabs.closeButtons setting.

Config name: browser.tabs.closeButtons
Default: 1

Modified values:
0 - display a close button on the active tab only
1- display close buttons on all tabs
2- don’t display any close buttons
3- display a single close button at the end of the tab strip 8)Extend Scripts Execution Time
In Firefox 3, a script is only given 10 seconds to respond, after which it will issue a unresponsive script warning. If you are hooked on a slow network connection, you might want to increase the script execution time via dom.max_script_run_time to cut down on the frequency of the no script warning.

Config name: dom.max_script_run_time

Default:10 (in secs)

Modified value: 20, or any values greater than 109) Handling javascript Popups
When you come across a site that executes a javascript open new window function, and if the popup window is without all the usual window features, i.e. back/forward/reload buttons, status bar etc, Firefox will automatically treat it as a popup and will not open it as a new tab. However, if you find this to be a nuisance and wanted to open all new windows in a new tabs, you can specify it via thebrowser.link.open_newwindow.restriction setting.
Config name: browser.link.open_newwindow.restriction
Default: 2 - Open all javascript windows the same way as you have Firefox handle new windows unless the javascript call specifies how to display the window
Modified values:
0 – open all links as how you have Firefox handle new windows
1 – do not open any new windows
2- open all links as how you have Firefox handle new windows unless the javascript specify how to display the window10) Enable Spell Checking In All Text Fields
The default spell checking function only checks for multi-line text boxes. You can get it to spell-check for single line text box as well.
Config name: layout.spellcheckDefault
Default: 1 (spell checker for multi-lines text boxes only)
Modified values:
0 – disable the spell checker
2 – enable the spell checker for all text boxes 11) Open Search Box Results In New Tab
When you search using the search box at the top right hand corner of the browser, it will display the search results in the current tab. If you don’t want the search to interfere with your current tab, you can tweak the browser.search.openintab to make it open in a new tab.

Config Name: browser.search.openintab
Default: False

Modified value: True (open search box results in new tab)12) Lower The Physical Memory Used When Minimized
This tweak is mainly for Windows users. When you minimize Firefox, it will send Firefoxto your virtual memory and free up your physical memory for other programs to use.Firefox will reduce its physical memory usage, when minimized, to approximately 10MB (give or take some) and when you maximize Firefox it will take back the memory that it needs.

The preference name does not exist and needs to be created.

Right click on the background and select New->Boolean.

Enter the name when prompted: config.trim_on_minimize

Enter the values: True13) Speed up your Firefox

Several tweaks required for this

Config name: network.http.pipelining

Default: False

Modified value: True

Config name: network.http.proxy.pipelining

Default: False

Modified value: True

Config name: network.http.pipelining.maxrequests
Default: 4
Modified value: any value higher than 4, but not more than 8
Config name: network.http.max-connections

Default: 30
Modified value: 96
Config name: network.http.max-connections-per-server
Default: 15
Modified value: 3214) Increase/Decrease the Amount of Disk Cache
When a page is loaded, Firefox will cache it into the hard disk so that it doesn’t need to be download again for redisplaying. The bigger the storage size you cater for Firefox, the more pages it can cache.
Before you increase the disk cache size, make sure that browser.cache.disk.enabledbrowser.cache.disk.enable is set to True.

Config name: browser.cache.disk.capacity
Default: 50000 (in KB)
Modified value:
0 – disable disk caching
any value lower than 50000 reduces the disk cache
any value higher than 50000 increases the disk cache.
15) Select all text when click on the URL bar
In Windows and Mac, Firefox highlights all text when you click on the URL bar. In Linux, it does not select all the text. Instead, it places the cursor at the insertion point. Regardless which platform you are using, you can now tweak it to either select all or place cursor at insertion point.

Config name: browser.urlbar.clickSelectsAll

Modified value:
False – place cursor at insertion point
True – select all text on click 16) Autofill Address in URL Bar
Other than the smart location feature, you can also get your URL bar to autofill the address as you type the URL.

Config name: browser.urlbar.autofill

Default: False

Modified value: True (Have Firefox autofill the address as you type in the URL bar)17) Same Zoom Level For Every Site
Firefox remembers your zoom preference for each site and set it to your preferences whenever you load the page. If you want the zoom level to be consistent from site to site, you can toggle the value of browser.zoom.siteSpecific from True to False.
Config name: browser.zoom.siteSpecific

Default: True

Modified value: False (enable same zoom preferences for every sites)18) Setting your zoom limit
If you find that the max/min zoom level is still not sufficient for your viewing, you can change the zoom limit to suit your viewing habits.
Config name: zoom.maxPercent

Default: 300 (percent)

Modified value: any value higher than 300

Config name: zoom.minPercent

Default: 30 (percent)
value: any value19) Configure Your Backspace Button
In Firefox, you can set your backspace to better use by getting it to either go back to theprevious page or act as page up function.

Config name: browser.backspace_action

Default: 2 (does nothing)

Modified value:
0 – go back previous page
1- page up20) Increase Offline Cache
If you do not have access to Internet most of the time, you might want to increase the offline cache so that you can continue to work offline. By default, Firefox 3 caches 500MB of data from supported offline Web apps. You can change that value to whatever amount of your choice.
Config name: browser.cache.offline.capacity

Default: 512000 (in KB)

Modified value: any value higher than 512000 will increase the cache value21) Auto Export Firefox 3 bookmarks to bookmarks.html
Unlike the previous version, Firefox 3 backup the bookmarks file in places.sqlite rather than the usual bookmarks.html. Since bookmarks.html allows us to export and sync our bookmarks with other browser, it will be very useful if Firefox 3 can backup the bookmark to the bookmarks.html as well.

Config name: browser.bookmarks.autoExportHTML

Default: False

Modified value: True (auto export bookmarks file to bookmarks.html)22) Disable Extension Compatibility Checks
This is useful if you want to use an extension that is not supported by your version of Firefox badly. It is not recommended, but you can still do it at your own risk.

Right click and select New->Boolean. Enter extensions.checkCompatibility in the field. Enter False in the next field.

Right click again and select New->Boolean. Enter extensions.checkUpdateSecurity into the field and enter False into the next field.23) Disable Delay Time When Installing Add-on
Everytime you wanted to install a Firefox add-on, you will have to wait for several secs before the actual installation starts. If you are tired of waiting, you can turn the functionsecurity.dialog_enable_delay off so that the installation will start immediately upon clicking.

Config name: security.dialog_enable_delay

Default: 2000 (in msec)

Modified value:
0 – start installation immediately
any other value (in msec)24) View Source in Your Favorite Editor

This is very useful for developers who are always using the ‘view source‘ function. This tweak allows you to view the source code in an external editor.

There are two configuration need to be made:

Config name: view_source.editor.external

Default: False

Modified value: True ( enable view source using external text editor)

Config name: view_source.editor.path

Default: blank

Modified value: insert the file path to your editor here.25) Increasing ‘Save Link As‘ timeout value

When you right click and select the ‘Save Link As…‘, the browser will request the content disposition header from the URL so as to determine the filename. If the URL did not deliver the header within 1 sec, Firefox will issue a timeout value. This could happen very frequently in a slow network connection environment. To prevent this issue from happening frequently, you can increase the timeout value so as to reduce the possibility of a timeout.

Config name: Browser.download.saveLinkAsFilenameTimeout

Default: 1000 (1 sec)

Modified value: any value higher than 1000 (value is in msec)26) Animate Fullscreen Toolbar Collapse mode

In Firefox’s fullscreen mode, toolbars and the tab strip are hidden at the top of the screen and only shown on mouseover. To draw attention to this, there is an animation of the toolbar sliding upwards and off-screen when fullscreen mode is toggled on. For performance issue, the animation of the collapse of the toolbar only appear for the first time. For some reason that you may love/hate the animation, you can adjustBrowser.fullscreen.animateUp to switch it on/off for every collapse.

Config name: Browser.fullscreen.animateUp

Default: 1 (animate the toolbar collapse only the first time)

Modified value:
0 -disable the animation
2- enable the animation for every collapse27) Autohide Toolbar in Fullscreen mode

In fullscreen mode, the toolbar is set to autohide and appear upon mouseover. If you have a need to view the toolbar at all time, you can toggle the value ofbrowser.fullscreen.autohide to False to always show the toolbar.

Config name: browser.fullscreen.autohide

Default: True (always autohide)

Modified value: False (always show the toolbar)28) Increase Add-On search result

If you go to Tools->Add-ons->Get Add-ons and perform a search there, Firefox will only fetch and display 5 matching results. If you want Firefox to show more than 5 results (say 10), you can adjust extensions.getAddons.maxResults to get it to display more results.

Config name: extensions.getAddons.maxResults