Up & Coming Extensions

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Open With Google Chrome No Restart

Open With Google Chrome sends pages from Mozilla Firefox to Google Chrome.

Rated 5 out of 5 stars (5)
15,878 users

Free Memory Button No Restart

Free unused memory that Firefox is currently using.

Rated 5 out of 5 stars (2)
3,541 users

Lightning Featured

Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

Rated 3 out of 5 stars (1,851)
3,545,852 users

Close Proxy Authentication

Provides transparent proxy authentication on your enterprise network.
Close authentication dialog if login on proxy failed.

Rated 5 out of 5 stars (2)
999 users

All Menus Button No Restart

Show all the menus in a single menu button that can be placed anywhere. Also contains replacement buttons for the default menus.

Rated 5 out of 5 stars (4)
1,158 users

RedirectCleaner No Restart

RedirectCleaner cleans Redirects from Links

Rated 4 out of 5 stars (5)
4,172 users

uBlock Origin No Restart

Finally, an efficient blocker. Easy on CPU and memory.

Rated 5 out of 5 stars (146)
167,351 users

Bookmark Toolbar Menu Button No Restart

Show the contents of the Bookmarks Toolbar in a drop down menu. This compresses the bookmark menu into one button that you can put on any toolbar you want to.

Rated 5 out of 5 stars (2)
1,316 users

elevenia

Instant access to your online shopping paradise. The more transaction you've made from our extension, the more point-cashback you'll get!

Rated 5 out of 5 stars (1)
2,374 users

Extra Format Buttons

Adds a font size (in pixels), strikethough, subscript and superscript buttons to Thunderbird's Compose Window.

Rated 5 out of 5 stars (5)
3,803 users

Proxy Tool

Proxy Tool - Powerful, yet User-friendly proxy tool to manage your proxies and anonymity needs, including: 46M+ user agents (world's largest), 10 different spoofed HTTP referrers, auto-proxy rotation, plus many more. Developed by http://ProxyList.co

Rated 4 out of 5 stars (39)
13,774 users

Sharp Color Picker No Restart

A full featured color selector tool, to work with colors, and easily find the colors you want.

Not yet rated
1,302 users

OpenDownload²

OpenDownload² extends the "Save" dialog by a "Run" button to open the file directly.

Rated 5 out of 5 stars (137)
32,091 users

FlashResizer

Makes Flash Movies/Games Resizable, and other enhancements.

Rated 4 out of 5 stars (27)
12,901 users

Forecastfox (fix version)

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 5 out of 5 stars (127)
29,943 users

NewsFox Featured

NewsFox is an efficient 3-pane(email) style Atom/RSS feed reader.

Rated 4 out of 5 stars (209)
21,677 users

Mouse Gestures Suite

Mouse gestures for SeaMonkey & Firefox: navigate & execute commands using mouse gestures (with single mouse button) and rocker gestures (by pressing 2 mouse buttons). Also: scroll wheel navigation, page scrolling, tab scrolling.

Rated 5 out of 5 stars (19)
6,156 users

Simple Locale Switcher

An easier management of the user interface language

Rated 5 out of 5 stars (6)
11,141 users

Join-NG

Join partial messages. Somewhat similar to MS Outlook Express "combine and decode".

Rated 5 out of 5 stars (2)
1,805 users

cacaoweb

Watch videos without limit

Not yet rated
1,531 users