Top-Rated Extensions

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Sun Cult

Worldwide Sunrise, Sunset, Twilight, Moonrise and Moonset...

Rated 5 out of 5 stars (102)
5,649 users

VKontakte.ru Downloader (music/videos/photos @ VK)

Download music, videos and photos from VK.com / vkontakte.ru. One-click download, natural filenames, displaying file size and bitrate for music, downloading HD video, downloading HQ photos. No spam, no usage of your account, no spyware.

Rated 5 out of 5 stars (300)
292,432 users

Element Hiding Helper for Adblock Plus No Restart

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.

Rated 5 out of 5 stars (362)
989,338 users

rikaichan

Japanese to English/German/French/Russian dictionary. Just hover the mouse on top of a word, and a popup appears. Automatically de-inflects verbs and adjectives. Detailed kanji view...

Rated 5 out of 5 stars (79)
50,380 users

Form History Control

Manage form history entries (search, edit, cleanup, export/import) and easy text formfiller.

Auto-save text entered in any form while typing to allow fast recovery when disaster strikes.

Control for which webpage form history is saved or not.

Rated 5 out of 5 stars (63)
33,180 users

Disable clipboard manipulations No Restart

This extension prevents websites from interfering with your copy and paste actions.

Note: The same functionality is now built into Firefox, you can just change the dom.event.clipboardevents.enabled preference manually.

Rated 5 out of 5 stars (15)
4,228 users

ConQuery

Context searching for everyone and URL manipulation tool for advanced users...

Rated 5 out of 5 stars (36)
672 users

Console²

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 (45)
18,471 users

Keyword Search No Restart

Search in the awesome bar without changing your search engine.

Rated 5 out of 5 stars (52)
12,935 users

Right Links

This extension allows to open links in new tabs with right-click directly and using “long” left-click.
This is very useful for touchpads on notebooks and for mice without middle button.

Rated 5 out of 5 stars (85)
8,432 users

Irvine ContextMenu

Downloads links and images with Irvine.

Rated 5 out of 5 stars (23)
7,612 users

Saved Password Editor

Adds the ability to create and edit entries in the password manager.

Rated 5 out of 5 stars (157)
90,118 users

YouTube Anywhere Player No Restart

Watch videos anywhere in cinema mode without leaving the website you're on.

Rated 5 out of 5 stars (41)
42,451 users

Adblock Edge No Restart

Adblock Edge is a fork of the Adblock Plus version 2.1.2 extension for blocking advertisements on the web, without sponsored ads whitelist or bribes...

Rated 5 out of 5 stars (161)
601,966 users

Ziftr Alerts (formerly FreePriceAlerts) No Restart

You do the shopping. We'll do the searching. It's that simple.

Rated 5 out of 5 stars (22)
36,674 users

Identity Chooser

Identity Chooser helps you to always use the correct identity when composing a new email.

Rated 5 out of 5 stars (75)
8,302 users

SmartTemplate4

SmartTemplate4 offers an easy way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every account as well as for the default (all email accounts). Also supports the Stationery Add-on.

Rated 5 out of 5 stars (39)
15,044 users

F.B. Purity - Cleans Up Facebook No Restart

F.B. Purity hides the ads, app spam and other annoying clutter from your facebook news feed, lets you increase the font size, change colours plus many more features and generally makes Facebook a lot less annoying to use.

Rated 5 out of 5 stars (51)
57,429 users

NoScript Security Suite Featured

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 (1,292)
2,277,865 users

bioFOX

Bioinformatics tools on Mozilla based browsers

Rated 5 out of 5 stars (20)
791 users