Add extensions, get work done

Auto Save HTML is a small extension which can be used to automatically download the HTML document(s) of a specified website when browsing that same website.

Search the Leiden University Catalogue, or your favorite scholarly search engine, at any moment without leaving your current page!

A firefox addon to close all tabs based on domain name or keyword.

Hide all the Shorts in the subscriptions and other page. Remove also the tab from the sidebar

To use, type 'ms' plus keyword for custom search engines & search term separated by spaces into the url bar. (e.g. ms google searchtext). Also search using multiple search engines in one go (e.g. ms key1,key2,key3 <search text="">).

Copy Unicode URLs to clipboard without nasty percent-encodings or Punycode!

Extension for UserTesting Recorder

Scrapyard is a page-archiving bookmark manager suitable for heavy scrapbooking. With its friendly user experience and simple configuration it may be an excellent replacement for the legacy ScrapBook and even for the built-in bookmark manager.

Open current page, link, or all tabs in the Opera browser.

Opens your current Youtube video in a new embed window that fills the size of the window. Better than full screen!

Get instant explanation for any acronym or abbreviation that hits you anywhere on the web!

Helps OpenStreetMap contributors to easily switch between different maps and analysis tools from the community.

Youtube Video Speed Controller for adjusting video speed from 1x - 4x

handy tool that adds a calculator to your web browser, allowing you to quickly perform mathematical calculations while browsing.

Clip article,selected text, images to oneNote. Take screenshot & save to oneNote. Faster & more user-friendly than official oneNote

Analyzes and scores courses on kurser.dtu.dk/xxxxx

Copy selection or link of current page as Org-mode format text!

Stylish analog clock for your browser toolbar.