Interface Customizations

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ThreadKey Requires Restart

Strike the 'T' key to sort messages by thread, strike the 'U' key to sort them unthreaded again, just like the 'G' key switches to Grouped By Sort view

Rated 4 out of 5 stars (23)
26 weekly downloads

Edit Bookmark Plus Requires Restart

Resize 'Add Bookmark' Popup / 'Edit This Bookmark' Popup, fixes tree selection bug, option to disable popup auto close & Update Url and/or Name of a bookmark with the Url/Title of current page.

Replacement of OpenBook addon

Rated 4 out of 5 stars (67)
25 weekly downloads

KeePass Helper Requires Restart

Adds a hostname, URL, or email account ID to the application's window name (e.g., that of Firefox or Thunderbird) to make it recognizable to password manager utilities like KeePass.

Rated 4 out of 5 stars (40)
25 weekly downloads

ImageTweak: zoom/rotate images and videos! Requires Restart

A no-clutter image viewer for Firefox that allows you to zoom, rotate and display images/videos against a custom background. ImageTweak is a must-have addon for any photographer or photography-loving user.

Rated 4 out of 5 stars (95)
25 weekly downloads

Restart Application Button

Restart Application Button lets you restart your Firefox and SeaMonkey application by a quick toolbar button click.

Rated 5 out of 5 stars (2)
25 weekly downloads

Compact Menu 2 Requires Restart

Add a compact menu button to the navigation toolbar, and hide the menu bar.

Rated 4 out of 5 stars (326)
25 weekly downloads

Page Colors & Fonts Buttons

Adds buttons to toggle the using the default page colors and fonts, and the page defined colors and fonts.

Rated 5 out of 5 stars (7)
25 weekly downloads

Lightweight Themes Manager

Manage your installed personas (lightweight themes).

Rated 4 out of 5 stars (13)
24 weekly downloads

Tabs Menu Requires Restart

Adds a Tabs menu to the main menu that lets you easily change between tabs.

Rated 4 out of 5 stars (32)
23 weekly downloads

xSidebar Requires Restart Featured

Firefox style sidebars for SeaMonkey...

Rated 4 out of 5 stars (12)
22 weekly downloads

InspectorWidget Requires Restart

Adds toolbar button and context menus for invoking the DOM Inspector (DOMi) for either chrome or content elements.

Rated 5 out of 5 stars (10)
22 weekly downloads

SeaTab-X-2 Requires Restart

Adds Firefox-style tab closers into SeaMonkey.

Rated 5 out of 5 stars (21)
21 weekly downloads

Duplicate Tab Requires Restart

Duplicate Tab allows you to clone a tab along with its...

Rated 4 out of 5 stars (164)
21 weekly downloads

Tab Clicking Options Requires Restart

Select actions for various clicking events on a tab or the tab...

Rated 4 out of 5 stars (70)
20 weekly downloads

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)
19 weekly downloads

AMO Browsing for SeaMonkey

This extension makes browsing for extensions easier at addons.mozilla.org. It fixes incorrect information about some extensions being not available for SeaMonkey and adds links to the Add-on Converter where needed.

Rated 5 out of 5 stars (5)
18 weekly downloads

Xclear Requires Restart

Safari-like icons in the URL, search and find fields to clear their contents.

Rated 5 out of 5 stars (43)
18 weekly downloads

HTML5 Loop Requires Restart

Loop HTML5 Video and Music.

Rated 2 out of 5 stars (16)
17 weekly downloads

SeaMonkey Vertical Tab Bar Requires Restart

Tab bar on the side of the window for SeaMonkey.

Rated 5 out of 5 stars (6)
17 weekly downloads

Re-Pagination

See more search results etc. on one page, concatenating several pages together...

Rated 4 out of 5 stars (52)
16 weekly downloads