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The Addon Bar (Restored)

Gives you a place to put all your add-on buttons without over-crowding the navigation bar.

Rated 5 out of 5 stars (361)
70,507 users

colorPicker

A very simple extension for learning web page colors. Copy the RGB or Hex color code of any pixel displayed in your browser to the clipboard (in CSS/HTML format). Similar in function to Internet Explorer's color picker.

Rated 4 out of 5 stars (47)
69,627 users

Webmail Ad Blocker Compatible with Firefox 57+ Featured

Expand your email area by blocking and removing ads on the right hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail.

Rated 4 out of 5 stars (213)
59,348 users

OmniSidebar Featured

Bring your bookmarks into view with just a gesture. Move the sidebar across the screen. Open a different sidebar by just clicking its title. And more! Keeps your sidebar simple and quick to access!

Rated 5 out of 5 stars (125)
58,471 users

Tile Tabs Requires Restart Featured

Displays tabs in tiled layouts in Firefox. Arrange tiles horizontally, vertically or in a grid. Resize tiles by dragging splitter bars. Tabs and links can be dragged to open in other tiles. Supports multiple tiled layouts. Works with tab groups.

Rated 5 out of 5 stars (253)
57,780 users

Extended Statusbar

A Statusbar with speed, percentage, time and loaded size (similar to Opera's one)

Rated 4 out of 5 stars (248)
57,355 users

I don't care about cookies

Get rid of annoying cookie warnings from almost all 'infected' websites!

Rated 5 out of 5 stars (175)
55,663 users

SearchPreview Compatible with Firefox 57+

The main feature of SearchPreview is to enhance your search results pages. It inserts site preview images (thumbnails), popularity ranks and sponsored links (where available) into Google™, DuckDuckGo™, Yahoo™ and Bing™ searches.

Rated 4 out of 5 stars (380)
47,200 users

Forecastfox (fix version) Compatible with Firefox 57+ Featured

Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.

Now Available for: Firefox, Thunderbird and SeaMonkey!

Rated 4 out of 5 stars (282)
46,089 users

JavaScript on-off applet Requires Restart

Applet for JavaScript simple On/Off

Rated 4 out of 5 stars (8)
45,730 users

Roomy Bookmarks Toolbar Requires Restart

FIREFOX 57 NOT SUPPORT THIS ADDON. IT'S IMPOSSIBLE
Make your bookmarks bar better. Roomy Bookmarks Toolbar can: hide bookmarks/folders name(dock like), multirow, autohide and many another features(more than 20).

Rated 4 out of 5 stars (293)
44,752 users

Turn Off the Lights Compatible with Firefox 57+ Featured

The entire page will be fading to dark, so you can watch the video as if you were in the cinema.

Rated 5 out of 5 stars (289)
44,468 users

Time Restart

Allows you to specify the time to restart browser.

Rated 5 out of 5 stars (18)
42,188 users

Forecastfox Weather Requires Restart

Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.

Rated 4 out of 5 stars (927)
38,713 users

Hide Tabbar Requires Restart

Hide the tabbar by just pressing a key.

Rated 4 out of 5 stars (87)
38,207 users

Dark Background and Light Text

Makes every page (or only pages that you want) to have light text on dark background. Exact colors are customizable.

Rated 5 out of 5 stars (228)
35,211 users

Updated Ad Blocker for Firefox 11+ Requires Restart

It blocks ads on the web pages you visit including Youtube, Hulu, TwitchTV/JustinTV, most Major News Sites(cnn/fox/nbc/msnbc) and many more. Ads from services like Google AdSense Yahoo DoubleClick It also blocks the GoogleAnalytics tracking script.

Rated 3 out of 5 stars (54)
34,787 users

Flash Control

Controls as and when to display the Flash player and the HTML5 player.

Rated 4 out of 5 stars (70)
34,465 users

New Tab Tools Featured

Customizes the new tab page. Add more tiles. Have a background image. Set new tile images and titles. See recently closed tabs. And more...

*The first WebExtension version has been in the AMO review queue for two weeks! Don't blame me.*

Rated 4 out of 5 stars (234)
33,117 users