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DOM Inspector Requires Restart

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Rated 5 out of 5 stars (69)
114,636 users

NoScript Security Suite Requires Restart

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

Rated 5 out of 5 stars (1,566)
2,010,914 users

Twitter Address Bar Search Featured

Mozilla Firefox with Twitter instantly connects you with what's happening in the world. Search people and topics on Twitter using @ and # from the address bar.

Rated 4 out of 5 stars (43)
2,083 users

AVIM Requires Restart

Vietnamese-language input method editor (IME). Type diacritics directly into any Web page, Web app, or dialog box. Convenient, comprehensive, secure.
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Bộ gõ tiếng Việt cho phép đặt dấu trực tiếp vào bất kỳ trang Web, ứng dụng Web, hộp thoại.

Rated 5 out of 5 stars (33)
3,118 users

Webpage Snapshot to Scrapbook Requires Restart

Create snapshots of webpages and upload them to a digital scrapbook for collection and to share with friends. A new way to bookmark useful web information!
Crop the area of the webpage that you need, upload and then annotate the image and save.

Rated 4 out of 5 stars (4)
1,329 users

Copy As Plain Text Requires Restart

Removes formatting from copied text.

Rated 4 out of 5 stars (59)
20,066 users

Shareaholic | share with Google, Facebook and more Requires Restart

Shareaholic is the easiest way to share & bookmark great content from anywhere on the web from one simple ALL-IN-ONE add-on. Works with Facebook, Twitter, Pinterest, Google, LinkedIn, E-mail and 200+ additional services.

Rated 4 out of 5 stars (265)
9,392 users

Instagram Video Download

Download videos from Instagram (and as plus, easily save photos).

Rated 4 out of 5 stars (10)
10,201 users

Disable Add-on Compatibility Checks

Reinstates the extensions.checkCompatibility preference without respect to the current application version.

Rated 4 out of 5 stars (105)
36,125 users

Restartless Restart

This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart Firefox or Seamonkey.

Rated 4 out of 5 stars (214)
24,312 users

Safe for Amoled

Darkens the background of the page

Rated 4 out of 5 stars (18)
1,979 users

Console² Requires Restart

Console² (pronounced Console Squared or Console Two) replaces the JavaScript Console with what could be the next generation Error Console. From v0.5 includes the Console Filter extension previously available separately from the Console² website.

Rated 5 out of 5 stars (49)
6,962 users

No need flash plugin on embeded youtube movies

No need flash plugin on embeded youtube movies

Rated 4 out of 5 stars (2)
6,772 users

RememberPass

RememberPass is a Firefox/Firefox Mobile Addon to force browser to remember password even website disable it by default. It's done by set autocomplete to "on" where it's off.
Here is: Test Page

Rated 3 out of 5 stars (22)
6,111 users

lolifox - Fierr MOD Requires Restart

Replaces the error page with a lolifox appearance with additional features.

Rated 5 out of 5 stars (20)
3,646 users

URLFilter

Block advertisement and access to adult sites

Rated 4 out of 5 stars (15)
3,766 users

Xultris Requires Restart

Xultris is a variant of the computer game classic Tetris.

Rated 4 out of 5 stars (17)
1,316 users

Network Preferences Add-on

Network Preferences add-on for Firefox for Android

Rated 3 out of 5 stars (8)
1,579 users

Polskie Radio podcast download

Obsługa wbudowanego playera, aktualizuj: https://addons.mozilla.org/pl/firefox/addon/podcast-polskieradio/versions/0.9

Dodaje opcję pobierania (link "Pobierz") podcastów ze stron Polskiego Radia http://polskieradio.pl/ do plików MP3/FLV na dysk.

Rated 5 out of 5 stars (13)
1,480 users

Silent Block

Minimum and fast URL blocker.

Rated 5 out of 5 stars (16)
7,380 users