View mobile or desktop versions of sites, by impersonating other browsers' useragent headers.
Network Preferences add-on for Firefox for Android
Fonts for Mozilla's MathML engine.
Darkens the background of the page
Console² Requires Restart
Copy As Plain Text Requires Restart
Removes formatting from copied text.
Webpage Snapshot to Scrapbook Requires Restart
Create snapshots of webpages and upload them to a digital scrapbook for collection and to share with friends. A new way to bookmark useful web information!
Crop the area of the webpage that you need, upload and then annotate the image and save.
Pretty-prints JSON content in the browser for easy, unobtrusive viewing.
Lost in translation Requires Restart
For Google Translate only. Long click on "Translate": you will see
your text + its translation
your text + its interpretation through double translation.
Hence the name: the comparison allows you to see what was lost in translation.
Virtual Keyboard For Fennec Requires Restart
Virtual Keyboard Emulator For Fennec Desktop
Cookie preferences and prompter for Firefox for Android
Delete all cookies when you close Firefox Mobile.
MuLTiFlow Requires Restart
A simple Rich Text Editor that support Maths and Graphics editing
Tamil to Sinhala Transliteration Requires Restart
Transliterate Tamil selected text in to Sinhalese. When click on that text full transliterated text display as popup.
Bigger Text Requires Restart Featured
Make fonts larger and more readable
Add support for printing webpages using Google Cloud Print