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Mozilla Archive Format, with MHT and Faithful Save Requires Restart

— Open web pages saved with Internet Explorer or other browsers (MHT)
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!

Rated 5 out of 5 stars (359)
40 users

Stylish Sync

Sync engine for Stylish with backup / restore facility.

Rated 5 out of 5 stars (31)
4 users

DOM Inspector Requires Restart

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Rated 5 out of 5 stars (78)
14,488 users

Stylish-Custom Requires Restart

custom additions to Stylish extension

Rated 4 out of 5 stars (10)
6 users

Font Finder Requires Restart

FontFinder is created for designers, developers and typographers. It allows a user to analyze the font information of any element on a page, copy any piece(s) of that information to the clipboard, and perform inline replacements to test new layouts.

Rated 4 out of 5 stars (80)
6 users

Stylish Tools Requires Restart

Quicker access to several Stylish features through a toolbar button and/or keyboard shortcuts. Available for Firefox, Thunderbird, and SeaMonkey

Rated 4 out of 5 stars (3)
2 users

globalChrome.css Requires Restart

Provides global user stylesheet.

Not yet rated
1 user

View Source Requires Restart

Shows all source files of a webpage.

Rated 4 out of 5 stars (7)
1 user

Web Design Search Plugin

Add this powered by Google search engine to your search bar, and search within web design blogs and websites.

Not yet rated
2 weekly downloads

Quirksmode Search

Searches Quirksmode.org

Not yet rated
0 weekly downloads

Gomodo

Search Tool for Webdeveloper

Not yet rated
0 weekly downloads