Up & Coming Extensions

Subscribe

jQuery Requires Restart

jQuery and jQuery UI embedded in browser

Rated 4 out of 5 stars (7)
1,548 users

about:addons-memory 2016

Adds a new page that shows add-on memory usage

Rated 5 out of 5 stars (39)
6,337 users

FxIF Requires Restart

View EXIF data in image properties

Rated 4 out of 5 stars (96)
16,475 users

Live HTTP Headers (clone)

View HTTP headers of a page and while browsing.

This is an unofficial "Live HTTP headers" clone, mainly to fix the Replay feature!

Rated 4 out of 5 stars (16)
4,780 users

Thumbnail Zoom Plus Requires Restart

Shows full image when you hover over a thumbnail. Works with Amazon, Baidu Images, Bing Images, Facebook, Flickr, Google+, Google Images, IMDb, LinkedIn, Netflix, Pinterest, Reddit, Twitter, Yandex, YouTube, Wikipedia, Yahoo Images, & many more.

Rated 4 out of 5 stars (392)
45,048 users

Bluhell Firewall

Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.

Rated 4 out of 5 stars (492)
41,371 users

Classic Toolbar Buttons [Fx45-56][Tb24-58]

'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions.

Beta builds on versions page!

Rated 5 out of 5 stars (143)
22,746 users

Unsubscribe from Mailing List Requires Restart

Allows recipients to cancel their newsletter subscriptions in the thunderbird interface.

Rated 4 out of 5 stars (12)
1,018 users

Linkification Requires Restart

Converts text links into genuine, clickable links...

Rated 4 out of 5 stars (286)
9,870 users

WorldIP - Geo Add-on with Security Features Requires Restart

Professional Geo Add-on with security features and advanced network tools. Anti-phishing. Protection against DNS spoofing and fake sites. All DNS records for domain. The real location of web server, country flag, extended information about datacenter

Rated 5 out of 5 stars (124)
13,549 users

Private Tab

Adds private tabs.

Rated 5 out of 5 stars (311)
33,550 users

Library Exporter Requires Restart

IMPORTANT: This add-on is just for exporting ebooks from EPUBReaders private library. If you want to read ebooks, please install https://addons.mozilla.org/firefox/addon/epubreader/.

Rated 5 out of 5 stars (1)
3,859 users

YouTube Anywhere Player

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

Rated 5 out of 5 stars (64)
5,340 users

Select like a Boss

Select link's text just like a regular text (like in Opera'12 browser) - Select like a Boss ;)

Rated 5 out of 5 stars (44)
1,672 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 (109)
13,920 users

easy Xdebug Requires Restart

This addon was built to make debugging while using netbeans PHP easier.

Rated 3 out of 5 stars (39)
1,730 users

GitHub Extension Installer

Install Browser Extensions straight from GitHub Repositories

Rated 4 out of 5 stars (24)
1,166 users

QuoteCollapse Requires Restart

Collapse and expand quotes. Please see the extension homepage for further information.
Note that MozDev has shut down long ago (mailing list etc). Add-On homepage, source code and issue tracker are on GitHub, as linked on this page.

Rated 4 out of 5 stars (27)
5,511 users

FireTray Requires Restart

A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...

Rated 4 out of 5 stars (265)
30,495 users

Compact Menu 2 Requires Restart

Add a compact menu button to the navigation toolbar, and hide the menu bar.

Rated 4 out of 5 stars (326)
3,236 users