PermaTab
PermaTab helps Pinned Tabs become more useful by (1) Re-opening your pinned tabs when you open your browser (2) Re-opening pinned tabs immediately when you close them and (3) Deduplicating pinned tabs with the same URL.
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Moo Later
Version 2.0 supports the new Firefox Quantum update (version 57) released in November 2017. Quickly save a page as a task in your Remember the Milk account. Automatically uses the title and url of the current page and any highlighted text.
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Pyrls
New-tab extension brought to you by Pyrls. Includes a todo manager, daily pyrl, and rotating array of beautiful background images.
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Etymonline
Select a word, right click, and choose Etymonline from context menu to look up its etymology seamlessly.
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target="_blank"-toggler
This addon changes the cursor when hovering a link that will open a new tab. It is possible to stay in current tab by pressing `Ctrl`/`Cmd` + `Shift`.
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Page Block
A simple extension that allows you to set a list of websites which you can only visit x times in an interval. You can chose a hourly or daily interval, when the limit is reached within that interval the tab will automatically close.
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No ParaSite - Best Site Blocker
Block sites and enhance your productivity with customizable limiting techniques and features. All for free. Pause/Block all distractions. Website Blocker Add-on Extension for Firefox
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Prevent Closing Window
Displays the "Leave Page" prompt to avoid accidentally closing the current window. **BUG** To allow Firefox to shut down, click Stay on page and the Close This Tab button before you exit.
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Tab cycle Plus
A simple tab cycle extension compatible with Firefox. Updated version of Tab Cycle.
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Link Cleaner
Clear unnecessary components from the URL query string and potentially improve your privacy.
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Tab Utility
A list of useful operations, like moving, closing, zoom, duplicate that you can perform on a tab.
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Watch without downloading
This browser extension allows you to watch video without downloading with subtitle support.
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