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Classic Theme Restorer (Customize UI)

Squared tabs, appmenu, add-on bar, small button view and many more 'old' features for Firefox 29+ (Windows / MacOSX / Linux).

All builds & changelogs on versions page!

Rated 5 out of 5 stars (895)
436,490 users

The Fox, Only Better No Restart Featured

Australis, the new Firefox theme, made a great browser look awesome. And now it will also feel awesome using it!

Rated 5 out of 5 stars (204)
38,539 users

Theme Font & Size Changer No Restart Featured

Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.

Rated 5 out of 5 stars (143)
88,737 users

OmniSidebar No Restart Featured

Bring your bookmarks into view with just a gesture. Move the sidebar across the screen. Open a different sidebar by just clicking its title. And more! Keeps your sidebar simple and quick to access!

Rated 5 out of 5 stars (70)
17,838 users

Classic Toolbar Buttons No Restart Featured

'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions on Windows.

Beta builds on versions page!

Rated 5 out of 5 stars (140)
40,620 users

Puzzle Toolbars No Restart

Piece together all of your add-on buttons and extras into your browser window in exactly the way you want them!

Rated 5 out of 5 stars (44)
3,985 users

Yahoo Mail Hide Ad Panel No Restart

Permanently hides the Ads panel on the right side of New Yahoo! Mail, the 'Sponsored' email at the Top, and ads on the Left to give you a full-width Premium email experience for free! The other option, of course is to pay $50 a year to Yahoo! Inc. :)

Rated 5 out of 5 stars (60)
31,163 users

Old Default Image Style No Restart

Restores the default image style used for top-level images in previous versions of Firefox.

Rated 5 out of 5 stars (89)
12,330 users

FindBar Tweak No Restart Featured

Everything to make your browser's Find Toolbar a powerful and accessible research tool! Please help me test the newest features and fixes, by installing the latest beta version available in the Development Channel.

Rated 5 out of 5 stars (216)
28,638 users

GlassMyFox No Restart

Glass your Firefox gui with GlassMyFox (only possible on Windows 7 and Vista when AeroGlass is enabled). See instructions inside add-on description how to enable Glass on Windows 8.

Rated 5 out of 5 stars (137)
13,384 users

Turn Off the Lights

The entire page will be fading to dark, so you can watch the video as if you were in the cinema.

Rated 5 out of 5 stars (238)
87,833 users

SettingSanity

Re-adds the options to disable Images, JavaScript, and the Tab Bar in the Options window.

Rated 5 out of 5 stars (40)
8,430 users

The Addon Bar (Restored) No Restart Featured

Gives you a place to put all your add-on buttons without over-crowding the navigation bar.

Rated 5 out of 5 stars (261)
131,697 users

Open With Photoshop No Restart

Open With Photoshop is a new companion for web and graphic designers to open up any web image with Adobe Photoshop via a single and quick mouse click.

Rated 5 out of 5 stars (44)
14,013 users

SmoothWheel Featured

Scrolls the page smoothly when scrolling the mouse wheel (or keyboard arrows if enabled).

Rated 5 out of 5 stars (242)
48,581 users

Forecastfox (fix version)

Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.

Rated 5 out of 5 stars (113)
18,200 users

Stylish Sync No Restart

Sync engine for Stylish with backup / restore facility.

Rated 5 out of 5 stars (19)
5,592 users

Sidebars List No Restart

Adds drop-down list to switch sidebars

Rated 5 out of 5 stars (14)
682 users

Vimperator

Make Firefox look and behave like Vim

Rated 5 out of 5 stars (170)
30,480 users

bug447571 (Expand bookmarks toolbar)

Workaround Bug 447571 and Bug 449736 for Firefox 3.0.x and 3.5.x
Workaround Bug 542848 and Bug 544227 for Firefox 3.6.x

Rated 5 out of 5 stars (56)
60 users