To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseSearch Tools
Sort by:
YouTube Videos Download in one click Requires Restart
Download YouTube videos by clicking a button underneath videos in YouTube. Save YouTube videos and songs in 1080p (HD) MP4 or FLV format.
ZenbuShiitake Requires Restart
Zhong Wen Requires Restart
Mouse over a Chinese character to find out it's meaning. A popup will appear showing the 'Pinyin' pronunciation, the simplified character form, and the English translation. You can customize what parts to show on the preferences window.
Zorcher Requires Restart
Selecting a small text on the page do not need to copy it into the search bar of your browser or search engine. Just press the right mouse button and select the search service from the available list.
ע\ع (Ayn\Ayn) Lookup [former ע\ع Converter] Requires Restart
GP text research tool: transliterates Arabic/Syriac/Aramaic texts to Hebrew writing system, uses Wikipedia as a dictionary utilizing ¨see in anther language¨ links. Interface to dictionaries and encyclopedias. Select a text and use the context menu.
To create your own collections, you must have a Mozilla Add-ons account.