Google Keep Notes brings Google Keep right into your Firefox Sidebar.
Adds a text box to a toolbar button for taking notes
Stylish timer combined with stopwatch and alarm for your browser.
Simple sticky notes utility which provides facility to make small notes of any thing.
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.
Block distracting websites when you are browsing the web. You can list websites that you don't want to visit in the settings. You can quickly turn the extension on or off from the toolbar.
Blocks annoying video ads on YouTube, Facebook ads, banners and much more. Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
Finally, an efficient blocker. Easy on CPU and memory.
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.