Top-Rated Extensions

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Sun Cult Requires Restart

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

Rated 5 out of 5 stars (105)
2,930 users

Click to Play per-element

Restore "Click to Play" ability of per-element for Firefox 36 and above.

Rated 5 out of 5 stars (74)
5,739 users

Rainbow Color Tools Requires Restart

This addon is no longer being updated and won't work with new versions of Firefox. See the Colorzilla addon for a replacement: https://addons.mozilla.org/en-US/firefox/addon/colorzilla/.

Color tools for web development.

Rated 5 out of 5 stars (97)
16,672 users

YouTube Flash Video Player Compatible with Firefox 57+

YouTube Flash Video Player is a powerful tool that will let you choose Flash video player as default YouTube video player.

Rated 5 out of 5 stars (97)
172,154 users

Google search link fix Compatible with Firefox 57+ Featured

This extension prevents Google and Yandex search pages from modifying search result links when you click them. This is useful when copying links but it also helps privacy by preventing the search engines from recording your clicks.

Rated 5 out of 5 stars (243)
64,671 users

CantoFish Requires Restart

CantoFish is a popup Cantonese-English dictionary for Firefox. It contains over 200,000 entries and works with both traditional and simplified Chinese characters. The Yale and Jyutping romanization systems are supported, as well as Mandarin pinyin.

Rated 5 out of 5 stars (23)
531 users

Bdword English to Bengali Dictionary Requires Restart

Find English to Bengali Meaning by clicking twice on any word.

Rated 5 out of 5 stars (13)
353 users

Sidebars List

Adds drop-down list to switch sidebars

Rated 5 out of 5 stars (13)
521 users

DblClicker

Double-click action for Firefox -
double-click Link, Bookmark/History to open in new tab (emulate ctrl+click).

Rated 5 out of 5 stars (72)
2,512 users

Form History Control Requires Restart

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 (95)
18,329 users

Classic Bookmarks Button Requires Restart

Mainly for Firefox 29+!

This add-on restores bookmarks menu known from older Firefox versions on Firefox Australis.

Use 'Customize (Toolbar)' menu to place the new bookmarks button on your favorite toolbar.

Rated 5 out of 5 stars (26)
2,776 users

Stylish Sync

Sync engine for Stylish with backup / restore facility.

Rated 5 out of 5 stars (26)
3,232 users

Baidu Tieba Harmonizer Requires Restart

A simple tool designed to circumvent Baidu Tieba's censorship.

Rated 5 out of 5 stars (16)
1 user

t5m.co URL Shortener

Shorten url with t5m.co URL Shortener

Rated 5 out of 5 stars (29)
46 users

Ageless for YouTube Compatible with Firefox 57+

Watch age restricted YouTube videos without signing in.

Rated 5 out of 5 stars (61)
10,415 users

Ecosia — The search engine that plants trees!

Ecosia is a search engine that donates 80% of its surplus income to planting trees. By searching with Ecosia you can help the environment for free.
This extension adds Ecosia.org as the default search engine to your Firefox. Give it a try!

Rated 5 out of 5 stars (154)
243,109 users

Simple Youtube Repeater Compatible with Firefox 57+

Simply click the repeat button to make the video automatically repeat. Works both with the newest HTML5 Player(version 2) and the old Flash Player(version 1).

Rated 5 out of 5 stars (19)
1,765 users

Better URL Bar

Makes the URL bar and Search bar more readable, and the navigation-toolbar compact.

Rated 5 out of 5 stars (19)
862 users

F.B. Purity - Cleans Up Facebook

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 (102)
19,874 users

PlayFlash 64bit Requires Restart

Flash player plugin - unofficial xpi repack for 64bit browsers. Use when official plugin installer is not suitable. All binary files are copyrighted by their authors and distributed for free.

Rated 5 out of 5 stars (22)
6,258 users