Search Results for tag "css"

Developer Tools - toolbar button

Access and activate the native Firefox Web Developer tools faster through this toolbar button (menu). Button can be placed on any toolbar.

Rated 4 out of 5 stars (9)
10,840 users

CSS Reloader

CSS Reloader is an extension that allows you to reload all the CSS of any site without you have to reload the page itself.

Rated 4 out of 5 stars (37)
6,382 users

Ad-blocker for Gmail No Restart

Hide ads in Gmail, and more cool stuff, simply with CSS.

Rated 4 out of 5 stars (14)
15,408 users

Originz No Restart

A source viewer that enables you to view not only page's HTML source but also style sheets and scripts. It uses Prism syntax highlighter and it can beautify(unminify) the source code.

Rated 4 out of 5 stars (8)
357 users


An editor with real time syntax highlighting which allows edit, run and test CSS, HTML and JavaScript code. Phoenix will tell you how many CSS and JS files are loaded into a page, how big these are, it will let you edit, pack and de-obfuscate them.

Rated 4 out of 5 stars (42)
3,294 users

DarkenBackground No Restart

replace white or very bright background on webpages with slightly darker colors

Rated 5 out of 5 stars (3)
634 users

DevTools Prototyper No Restart

This add-on adds JS Fiddle style code prototyping to Firefox DevTools.

Rated 5 out of 5 stars (3)
225 users

Font Finder Featured

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 (67)
33,110 users

Dafizilla ViewSourceWith

The main goal allows users to open (and in some cases edit) page source with external applications.

Rated 4 out of 5 stars (59)
6,667 users

FireFile No Restart

Firebug extension to save the CSS files edited with firebug live to your web server. That makes Firebug become the first remote-save live-preview CSS editor and allows ultra-fast webdesign and prototyping.

Rated 4 out of 5 stars (67)
2,831 users

CSS Usage

Firebug extension to view which CSS rules are actually used.

Rated 4 out of 5 stars (38)
21,045 users

superUserContent No Restart

Dynamically load stylesheets from plaintext files in your profile

Rated 5 out of 5 stars (2)
68 users


Flips page direction from LTR to RTL and vice-versa.

Rated 4 out of 5 stars (6)
76 users


LiveReload refreshes a web page when files change.

This extension is deprecated. The latest version is available at

Rated 4 out of 5 stars (13)
4,500 users

Advanced Frame Designer

A tool to design frames directly in the web page. The integrated color picker supports also harmonic colors. Operating notes see the tooltips.

Rated 5 out of 5 stars (2)
2,176 users

Context Style Switcher

Change Page Style via context menu

Rated 4 out of 5 stars (8)
471 users

Dust-Me Selectors

Dust-Me Selectors is development tool to remove unused CSS selectors.

Rated 4 out of 5 stars (79)
16,153 users


Display horizontal and vertical floating guides, exactly the way you use it in photoshop. Helps improving layout, placing elements in proper grids, laying out elements symmetrically and structure a design.

Rated 4 out of 5 stars (19)
4,527 users

Fresh CSS

Reload all stylesheets in a page using a customizable hotkey or button.

Rated 5 out of 5 stars (2)
113 users

View Source

Shows all source files of a webpage.

Rated 4 out of 5 stars (6)
1,184 users