Set your open tabs aside and store them for later. They will be stored in a new folder in your bookmarks and can be restored all at once via the sidebar. https://github.com/tim-we/tabs-aside
A better firefox extension for Pinboard (http://pinboard.in).
This add-on allows to replace or update an existing bookmark title and/or URL with a minimal click count..
Companion extension for the linkding bookmark manager
Official Pinboard.in Firefox Extension
Unofficial Hypothesis extension
An unofficial extension to collaboratively annotate the web using Hypothesis.
A two-panel bookmarks manager which is similar to the well-known Total Commander.
Integrate Firefox with Alfred — Search your Firefox bookmarks & history and control Firefox tabs from Alfred.
Fast Tab Switcher
Fast Tab Switcher allows you to find and switch to any tab immediately. It is very useful if you have multiple windows and/or lots of tabs opened. Just press Ctrl+Space!
Abcd PDF - New Tab
100% free and will convert and create various types of files (such as Word DOC, Excel XLS, and PowerPoint PPT).
PDFmyURL save webpages as PDF
Saves any WebPage as PDF quickly with a click on the PDFmyURL button.
Bookmark pages for read them later
Copy/Paste and Save tabs list
Allow to copy and save every tab opened and paste a list of url to open in new tabs.
Yawas Web Highlighter
Highlight and comment web pages. Your highlights are stored in your browser bookmarks, automatically recreated when you revisit a web page.
TagSpaces Web Clipper
This Add-on will help you to save web pages or parts of them as files, for later reading or organizing with app such as TagSpaces' desktop. Beside that you can take screenshots from the current page or create a bookmark for it.
Snippet - Web & PDF Highlighter / Kindle Importer
One platform to organize all your highlights - import Kindle highlights and annotate the web with the built-in highlighter.
Remember Everything You Read Online. An open-source and privacy focused extension to Full-Text Search, Annotate and Organise your Web-Research
Bookmark All Tabs
Bookmark all tabs. Fork of Bookmark Tabs to the Right.
Open in new tab
Open bookmarks and links in a new tab for a list of specified domains.
make the web page as a notebook. mark and note something on you visiting page.
Toolbar button to flip everything into your Flipboard.
Bookmarked Speed Dial
Speed Dial integrated with your bookmarks. Based on Speed Dial (Lite) by Mark Lumnert
Load up a random bookmark! Features: Create groups of bookmark folders to randomize from, randomize a folder with right click, tab options, and more!
A basic RSS reader like the good ol' Sage add-on, may the gods avenge his untimely death.
Too many open tabs? Manage your tabs, regain your sanity and improve your browsing experience with tabzen. Save and restore your tabs whenever you need them. Edit, annotate and organize your tabs. Export, import to and from HTML file.