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Firefox 21 for Windows 7 - "Experience lightning-fast browsing with Firefox 21." - Windows 7 Download

Firefox 21 Windows 7

Firefox 21 21.0

"Experience lightning-fast browsing with Firefox 21, the ultimate browser for Windows 7 users."

Firefox 21 is the latest offering from Mozilla Foundation, a renowned name in the world of web browsers. Running on Windows 7, this software boasts improved security and privacy features, with added support for HTML5 gaming and video playback. Its user-friendly interface and customizable settings make browsing a breeze. Firefox 21 is a must-have for anyone seeking a smoother and more secure web experience.

Firefox 21 21.0 full details

File Size: 20.30 MB
License: Freeware
Price: FREE
Released: 2013-05-14
Downloads: Total: 2989 | This Month: 1
Publisher: Mozilla Foundation
Publisher URL:

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Firefox 21BrowsersWindows XP, Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64

User Rating: 3.3 (21 votes)

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Firefox 21 windows 7 compatible windows 7 download editor's pick

Firefox 21 21.0 full description

Mozilla Firefox is a free and open source web browser developed for Windows, OS X, and Linux, with a mobile version for Android, by the Mozilla Foundation and its subsidiary, the Mozilla Corporation. Firefox uses the Gecko layout engine to render web pages, which implements current and anticipated web standards.

- Proudly non-profit
- Innovating for you
- Fast, flexible, secure

Bringing together all kinds of awesomeness to make browsing better for you. The Firefox browser is created by Mozilla, a non-profit organization whose mission is to promote openness, innovation and opportunity on the Web.

Firefox is available in over 70 languages, thanks to the contributions from Mozilla community members around the world.


Bringing together all kinds of awesomeness to make browsing better for you.

Awesome Bar

Get to your favorite sites quickly – even if you don’t remember the URLs. Type your term into the location bar (aka the Awesome Bar) and the autocomplete function will include possible matches from your browsing history, bookmarked sites and open tabs.

The Awesome Bar learns as you use it—over time, it adapts to your preferences and offers better-fitting matches. We’ve tweaked it to give you greater control over the results (including privacy settings) and increased performance so you find what you need even faster.

Improved Interface

We’re always looking for ways to make your browsing easier and more efficient.
Read on for our latest improvements

Tabs on Top
Tabs are above the Awesome Bar to make it easier to focus on the content of the sites you visit.

Firefox Button (Windows and Linux)
All your menu items are now found in a single button for easy access.

Bookmark Button
Manage your bookmarks in a single button. Find your favorite links without getting bogged down!

Simplified Reload/Stop Button
Your Awesome Bar now features one easy button to stop loading pages or reload pages.

Home Button
The Home button has been moved to the right side of the search-field.


Browse multiple sites at once, simply and easily. Each new site appears as a new tab
(not a new window) and can be accessed in one click.

App Tabs
Take sites you always keep open—like Web mail—off your tab bar and give them a permanent home in your browser.

As you’re opening a new tab or typing in the Awesome Bar, Firefox will check to see if you already have that site open. If you do, you’ll be directed to the existing tab so you don’t open a duplicate.

Organize your Tabs with Panorama
Too many tabs? Reclaim your browser from tab clutter! Panorama lets you drag and drop your tabs into manageable groups that you can organize, name and arrange in a fun and visual way. To get started with Panorama, simply select the Tab Groups icon when you customize your Navigation Toolbar or right click any tab to Move to Group.

Reopen Closed Tabs and Windows
If you accidentally close a tab or window, you can reopen it in one click. Just view Recently Closed Tabs or Recently Closed Windows in the History menu and select the tab or window you’d like to reopen.

Smooth Scrolling
Like to have all 20 of your favorite pages open at once? An elegant new feature lets you scroll through tabs easily to see them all and access the one you want quickly.

Firefox 21 21.0 download tags

Firefox 21 21.0 Windows 7 release notes

New Release
# NEW The Social API now supports multiple providers
# NEW Enhanced three-state UI for Do Not Track (DNT)
# NEW Firefox will suggest how to improve your application startup time if needed
# NEW Preliminary implementation of Firefox Health Report
# CHANGED Ability to restore removed thumbnails on New Tab Page
# CHANGED CSS -moz-user-select:none selection changed to improve compatibility with -webkit-user-select:none (bug 816298)
# CHANGED Graphics related performance improvements (bug 809821)
# CHANGED Removed E4X support from Spidermonkey
# DEVELOPER Implemented Remote Profiling
# DEVELOPER Integrated add-on SDK loader and API libraries into Firefox
# HTML5 Added support for <main> element
# HTML5 Implemented scoped stylesheets
# FIXED Some function keys may not work when pressed (833719)
# FIXED Browsing and Download history clearing needs unification to avoid confusion on clearing download history (847627)
[ Firefox 21 release history ]

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Firefox 21 for Windows 7 - Copyright information

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