Google Keep Notes brings Google Keep right into your Firefox Sidebar.
Simple sticky notes utility which provides facility to make small notes of any thing.
Stylish timer combined with stopwatch and alarm for your browser.
Adds a text box to a toolbar button for taking notes
Send the page you are currently viewing to your mobile device. QR codes are generated instantly in browser and never leave your computer. Implemented with WebExtensions API and compatible with Firefox 57+.
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
Collection of Tab Related Actions e.g. Duplicate, Close Duplicates, Close to the Left, Copy Title, Merge Windows, Save as PDF, Copy Urls Tab/All/Left/Right, Host keep/close/close other, Sort by URL/Title, Asce/Desc, Move, Reload, Reload Timer
Google Reverse Image Search The only add-on in this category capable of searching local files from the computer
Preview RSS feeds in browser
Brief makes reading RSS feeds as easy and intuitive as it gets. Designed to have exactly the right set of features, it is powerful and simple at the same time. Feeds are presented on a seamless, interactive page which let's you bookmark and tag items with a single click.
Indicates available RSS and Atom feeds and renders previews.
Simple dashboard-like RSS feed reader.
Notice you it's time to take a break!
Hydrator reminds you to drink water with a preset time using simple browser notifications!
This add-on helps you to remember to take breaks at regular intervals. You can select from a list of options to receive a notification to stretch up/ go for a walk after every 30 mins, 1 hour, 2 hours or 3 hours.
Healthy Back is your personal assistant who reminds you to sit up straight.