Firefox
Move Firefox Toolbar Icons to the Tab Bar

Moving your toolbar icons around is a great way to consolidate Firefox's interface, but you may not realize that those icons aren't just constrained to the toolbar. They can actually go up on the tab bar, too. More »
MAFIAA Fire Gets You Around Shut-Down Domains to Their New Homes

Firefox/Chrome: When government officials seized ownership of a number of domains last month, a lot of people suddenly found their favorite torrent tracker shut down. Many owners of the seized domains simply moved to new URLs. If you're looking for them, the MAFIAA Fire extension uses a crowd-sourced database of alternative domains to connect you. More »
Quickly Reopen Closed Browser Tabs with Your Keyboard

When you close a browser tab prematurely, whether it's by accident or, unbeknownst to you, you're going to need it again moments later, it's no fun digging through your history to get it back. That's why Control/Command+Shift+T was invented. It resurrects your fallen tabs from the graveyard of your browser history.More »
Firefox 5 Beta Released with Better Performance, Easy Channel Switcher [Beta Beat]
LessChrome HD Hides the Firefox URL Bar Until You Need It [Video]
<!-- videoId: aFWP-nltqfk --><!-- /videoId: aFWP-nltqfk --> Firefox: LessChrome HD is a Firefox extension made by the folks at Mozilla that hides Firefox's address bar by default,
Google Chrome, Firefox, Safari And Possibly Opera, Affected By Memory Leak

According to TNW, Internet Explorer is the only modern web browser (Opera was not tested due to temporary issue with the test page) that is not affected by the recently found memory leak.
One of the developers has created a test site with the Google’s App Engine to demonstrate the issue.
Once the site is back online, users can reproduce the bug by following these steps:
- Request an image from a server.
- Image result contains “Cache-Control: no-store”.
- Display the image.
Instead of freeing allocated memory, none of the tested web browsers did that. Here are his tests results:
Safari 5: Failed
Firefox 4.x: Failed
IE 7/8/9: Passed
As THB said, No-Store attribute was created so browsers would not store image on the local disk. Unfortunately, this is not the case. Furthermore, it looks like the issue is not OS related and was confirmed by both Windows and Linux users.
So here you have it folks, today Microsoft has a good reason to smile about.
Google Chrome, Firefox: Block Specific Sites With LeechBlock And StayFocusd
If you are looking for a great way to boost your productivity by blocking certain sites and the specific time of the day, then Google Chrome or Firefox are the browsers to user.
LeechBlock

LeechBlock is a Firefox extension which allows you to block up to six time-wasting web sites at different times of the day or limit the time you surf them.
StayFocusd

StayFocusd is a Google Chrome extension which will enable you not only to block various web pages, but also restrict the amount of time you use them.
Open Multiple Links with a Click and a Drag with These Browser Add-Ons

Opening a lot of links takes a lot of clicks, which gets tedious when you're scouring Google for information. These Chrome and Firefox add-ons will let you select multiple links with a click-and-drag motion, opening them all at once. More »
Top 10 Fixes for the Web's Most Annoying Problems [Lifehacker Top 10]
The internet is wonderful, but it's also a landfill for many annoying things.
CloudMagic Adds Offline Search for Google Account Data

Free Chrome and Firefox extension CloudMagic now indexes content from Gmail, Google Docs, and Google Contacts for offline searching within the browser. More »
Google Chrome Theme for Firefox 4
If you prefer Firefox functionality but want Google Chrome look, then here is something for you.
FXChrome is a simple, Google Chrome like theme for Firefox 4.
There is not much left to say other than: click here and check it out.
Be sure to check the installation instructions.
Put Firefox's Downloads in a New Tab Instead of a Separate Window

Firefox's separate downloads window can get kind of annoying, especially if you don't have the screen space to be moving windows around. The Downloads in Tab extension will let you monitor those downloads in a tab, Google Chrome-style. More »
Scrobble Amazon Cloud Player Tracks to Last.fm with a Userscript

Last.fm is one of our favorite music recommendation and statistics engines, and if you've fallen in love with Amazon's new Cloud Player service, you're probably looking for a way to scrobble the songs you listen to. This script will do the trick. More »
Save and Refill Any Web Form with a User Script

Most browsers: You're filling out your shipping address on Amazon, and you decide you want to continue shopping. You grab a few more items and—oh no!—now you're stuck filling out that form again. Avoid this annoyance with a simple userscript. More »
Internet Explorer 9 (IE9) vs. Firefox 4 vs. Google Chrome 10 vs. Opera 11 vs. Safari 5

Some time ago, TomsHardware has published a nice list of benchmark results for the top 5 web browsers. Unfortunately, they did not test the final version of Firefox 4.
Well, this is no longer the case as the most recent tests now include the following:
Internet Explorer 9
Firefox 4
Google Chrome 10
Opera 11
Safari 5
Startup

Google +Like Helps You Sort Through Search Results by Facebook Popularity

Chrome/Firefox/Internet Explorer: If you need a bit of help sifting through your Google search results, browser extension Google +Like will direct you toward the most popular pages by telling you which results have the most "Likes" on Facebook. More »
KeyMazony Adds Keyboard Shortcuts to Amazon's Cloud Player

Chrome/Firefox: Amazon's Cloud Player is a pretty awesome way to play your music on the go, but it's severely lacking in keyboard shortcuts. keyMazony adds a few of the basics to Cloud Player so you don't need to focus on it. More »
IE9 vs. Firefox 4 vs. Google Chrome 10 vs. Opera 11 vs. Safari 5
Now here is a new benchmark for you to talk about: power consumption.
Turns out, Microsoft optimized Internet Explorer 9 not only for the performance but also for your wallet and productivity.
According to IE Blog, when it comes to power consumption, IE9 and Firefox 4 are the browsers to die for.
Want some good news? Just by using Internet Explorer 9 over Opera 11 you can have an extra hour of the battery life on your laptop!
What do you think about the results? For even more details, visit the original post.
IE9 and Firefox 4 post top marks in Web browser power use comparison

A baseline was determined with test systems sitting idle, and then browsers were pointed at about:blank, a news site, the HTML5 Galactic demo, and the IE9 fish tank demo. Perhaps unsurprisingly, IE9 came out on top -- though Firefox 4 was a very close second on nearly every test. As you can see, the other browsers didn't necessarily fare quite as well, with Google Chrome, Safari, and Opera all posting significantly worse scores. In Opera 11's case, a laptop battery would last over one hour more with Internet Explorer 9 installed.









