Page Ruler
Measure page elements size in pixel with an easy-to-use ruler.
3,136 users
Tab ReTitle
Change tab titles easily! + Persists through sessions + Domain level re-titling + Regex replacements and much more!
3,132 users
New Tab from Location Bar
Opens new tabs from the location bar, by conditions.
3,074 users
Open bookmarks in a new tab
Open bookmarks in a new tab
3,068 users
Dark Mode
Adds a dark screen over everything rather than other high contrast "Dark mode" extensions
3,022 users
Popup window
Move tab to standalone window, without tabs bar, navigation bar and bookmark bar UI.
3,016 users
YouTube to MP3 Downloader
This extension add a download button on any Youtube page and allows you to download MP3 & Video with just one click.
2,994 users
Session Boss
Save and restore browser tab sessions.
2,958 users
Open in Foxit™ Reader
Adds a context menu item to send PDF links directly to Foxit™ Reader
2,943 users
Tree Tabs
You can manage your tabs in a tree structure. Themes: https://goo.gl/UtQ5vG Some of many features: - Drag&drop tabs to make trees - Select multiple tabs at once using ctrl or shift keys. - Search tabs using search tool
2,942 users
Merge Windows
Merges the tabs from multiple windows together into one window. Extension won't show context menu item when there aren't more than one window of the same type to merge together. Private windows will only merge with private windows not normal.
2,926 users
Workona Spaces & Tab Manager
Workona helps you get your work under control and finally feel organized. Use it to manage tabs, organize projects, and bring together all of your work in the browser. Watch the video here: https://workona.com/videos/tab-manager
2,920 users
FoxFilter
Recently called "THE Parental Control for Firefox"! FoxFilter is a personal content filter that helps block pornographic and other inappropriate content.
2,784 users
GMail Checker Simple
Very lightweight Firefox 57+ (WebExtension) Compatibile Gmail checker Add-On. Onclick: open GMail. English version.
2,779 users
CopyTabTitleUrl
Copy the title and URL to the clipboard.
2,754 users
Distract Me Not (website blocker)
Stay focused in a world full of distractions.
2,734 users
Audio Output Selector
Allows you to change the audio output device of <audio> and <video> elements. Requires media.setsinkid.enabled set to true in about:config!
2,718 users
All Tabs Helper
Provides list-style menu to do closing, loading, unloading, moving of single/multiple tabs. Search tab titles/urls, search content in all loaded tabs, visited tabs history, find duplicate tabs. (Window-centric except moves tabs across windows)
2,641 users
Rename Tab Title
Renames the Tab Title (Persistent across the sessions). Renaming to add custom words in tab titles makes it easy to search for tabs in the address bar.
2,593 users
恢复标签页
Add an icon to the toolbar.When you clicked the icon ,this tool restores the single most recently-closed session, whether it's a tab or a window ; 向工具栏添加一个图标,单击,恢复最近关闭的标签或窗口。
2,562 users
Freedom - Website Blocker
The Freedom website blocker gives you control over distracting websites, so you can focus on what matters most.
2,553 users
eBesucher Addon
Discover new websites and get paid with the eBesucher add-on
2,548 users
Convert to MP3
Convert and download video & audio files to .mp3 file format!
2,463 users
CapturePage
Capture the active tab and download it. Can be chosen in the extension's options : - File name 's pattern - Capture Type : full page / only the visible part - Format : PNG / JPEG - Coloration : in color or gray scale - etc.
2,446 users
Mute Tab (WebExtension)
Easily mute all tabs with just one click!
2,386 users