What is the best little known addon you have found?

I like finding little gems, here's a few I've found.. share yours please.

Mine.

Extension source viewer, a MUST have for anyone installing addons, view or download the addon code to review for dubious code before installing... https://addons.mozilla.org/en-US/firefox/addon/crxviewer/

Open bookmark in Container Tab, works as title says... https://addons.mozilla.org/en-US/firefox/addon/open-bookmark-in-container-tab/ ...

Containerise, easy to set sites to open in specified container... https://addons.mozilla.org/en-US/firefox/addon/containerise/

nextpage, works from first page on Reddit and other sites but some it doesn't until you go to the second page, after that it works well... https://addons.mozilla.org/en-US/firefox/addon/nextpage/

6 thoughts on “What is the best little known addon you have found?”

  1. My preferred choice is Tabs To Bookmark Groups (TTBG): https://addons.mozilla.org/en-US/firefox/addon/tabs-to-bookmark-groups/

    TTBG uses “Bookmarking/Closing” tab function (instead of “Hiding/Discarding”). So TTBG is much better in terms of privacy, security and browser performance. Also, TTBG minimizes browser or add-on conflicts (when compared to similar add-ons).

    Users can manage hundred of tabs by consuming just an average of 500MB (half a gigabyte) of RAM. As a consequence, less CPU is going to be used, less use of Drives, less hit on computer, more battery life etc.

    Every tab opened/closed in a specific group, automatically will be saved/deleted (Session Manager function) by TTBG. Users can add or remove tabs, that TTBG automatically will save/delete everything. This is extremely useful for work, study, programming, reading news in different categories, keeping shared subjects updated etc.

    As I mentioned all groups and tabs automatically are saved, so user always will have a kind of backup. At the same time, it’s very easy and quick to edit tabs, move, copy, delete, import and export to any other device. In seconds you can manage hundred of groups/tabs.

    TTBG has a complete and easier access to any group/tab through icon toolbar and sidebar (also allowing vertical tabbar). By the way, TTBG has an option to identify groups by colors, so users by seeing group colors they instantaneously can know where they are. For example, let’s say user wants his bank account or online payments in “red group”… in this example the color of the group will avoid mistakes. And if user prefers, instead colors he can use names for groups (or both).

    TTBG is the best of both worlds (Tab Session Managers & Tab Group Managers). More important, TTBG is an open source, and the Dev is very responsive.

    Here is a more detailed description: https://addons.mozilla.org/en-US/firefox/addon/tabs-to-bookmark-groups/reviews/

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  2. Open Not in New Tab:

    [https://addons.mozilla.org/en-US/firefox/addon/open-not-in-new-tab/](https://addons.mozilla.org/en-US/firefox/addon/open-not-in-new-tab/)

    Simple Bookmark Tree:

    [https://addons.mozilla.org/en-US/firefox/addon/simple-bookmarks-tree/](https://addons.mozilla.org/en-US/firefox/addon/simple-bookmarks-tree/)

    Remove Site Cookies:

    [https://addons.mozilla.org/en-US/firefox/addon/remove-site-cookies/](https://addons.mozilla.org/en-US/firefox/addon/remove-site-cookies/)

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  3. Not sure how little it’s known, but Personal Blocklist (not by Google). Allows hiding search results by site.

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  4. >Containerise, easy to set sites to open in specified container

    Isn’t this redundant? You can set sites to open in a specified container with the default firefox container addon.

    edit: you can also open bookmarks in a container (‘enable bookmark menus’ in options)

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