Most Popular Extensions
Inspect JSON object from a URL or entered data.
Requires either DOM Inspector or DOM Inspector Plus! [dm] extension.
This extension to download audio and video from popular video hosting YouTube. To download the available formats mp4, webm, mp4a, mp3.
Display mailing list header Requires Restart
This extension implements RFC 2369 for Thunderbird: Special mailing list header fields in the mail are parsed, and the links are displayed in the extended header view. You can click them to simply go to the archive, request help or unsubscribe.
CloseTab Requires Restart
Lightweight add-on which adds to right-click menu 3 items allowing to close current tab, open a new one and reopen closed one. Right-click anywhere on site instead of using keyboard or finding buttons.
Moves Edit > Preferences to Tools > Options…
Adds a few buttons to help with page navigation, including Page Top, Page Bottom, Page Down and Page Up.
NiceReader Requires Restart
NiceReader is designed for web reading. You can customize font, color, size, background, specify the elements to read, filiter ad elements, filiter ad strings, automaticaly turn page.
FromWhereToWhere Requires Restart
Link suggestion: based on user's local browsing history only.
Browsing history searching: list the pages from where you visited one page, and all the other pages you visited from those pages. Keywords searching, Scrapbook support, naive sharing.
Help you create element hiding rules for Pan to fight the text ads.
LastColour Requires Restart
Colour your text to the "last-picked" colour you chose in the colour-picker. Now you don't have to use the colour picker every time.
Forces safe search on the major search engines.
Quitomzilla Requires Restart
Quitomzilla helps you quit smoking while you surf the web or wait for new emails, showing the cigarettes, money and time you have saved since you quit...
Search YouTube For This Requires Restart
Right click on selected or a link click search YouTube For Video of in the menu, a new tab will open with the searched text.
ChatZilla zh-CN Language Pack Requires Restart
ChatZilla zh-CN language pack for ChatZilla 0.9.92
Use wheel mouse on videos to control video/audio/quality.
Choose flash/HTML5 on YouTube, autopause on background tabs, embedded videos.
And much more!
Conspiracy Requires Restart
Shows flag/country of involved Certification Authorities (CAs) for secured pages.
bioFOX Requires Restart
Bioinformatics tools on Mozilla based browsers
ScrapBook AutoSave Improved Requires Restart
ScrapBook AutoSave Addon, with some extra features.
TaQuilla Requires Restart
Automatic tagging using Bayesian statistics