Sage is a lightweight RSS and Atom feed aggregator extension for Mozilla Firefox. It's got a lot of what you need and not much of what you don't.
- Discontinued
- RSS Reader
- Free • Open Source
- Mac
- Windows
- Linux
- PortableApps.com
- Firefox

Browse 1,749 Mozilla Firefox Plugins, Add-ons and extension on AlternativeTo.
Sage is a lightweight RSS and Atom feed aggregator extension for Mozilla Firefox. It's got a lot of what you need and not much of what you don't.

A browser extension for custom keyboard shortcuts.

Ponder guides you through daily journaling right from your new tab. With self-reflective prompts, fast keyboard shortcuts, aesthetic backgrounds, and privately-stored entries, you can just focus on writing — Ponder takes care of the rest.

Graze makes it easy to follow, favorite, boost, and bookmark stuff on Mastodon. You don't need to copy & paste links or search for content from other instances. With Graze, you can discover new users and interact with their posts instantly!

Provides tab groups / panorama functionality using the tab hide api. Manage tab groups in a compact, tiled groups view.

AdBlock for YouTube removes all annoying Ads from YouTube.
Features:

This free Crypto Mining Blocker extension, blocks all CPU-Crypto Miners before they are loaded and prevents miners from running.
Yomitan turns your web browser into a tool for building language literacy by helping you read texts that would otherwise be too difficult to tackle in a variety of supported languages.

It can make sub-folder/sub-directory of github repository as zip and download it. You can also use the API if you would like to incorporate this into your own website. Clone this repository so that you will have the appropriate files. Then just call the API.

Local CDN extension is a fork for Decentraleyes project, bringing local redirection for well-known libraries. After the extension is installed, when a known library is requested by a webpage, the extension redirects this request to a local...

Clear the browser cache (DISK AND RAM) by pressing a single button or easy shortcuts (F9 on Windows and Linux and fn + F9 on OSX).

TLDR This is a web app that can take a painfully long piece of text and sum it up into five key bullet points. Spend less time reading counterproductive stuff and more on doing valuable work.
Download files using curl or wget. This addon generates curl/wget commands that emulate the request as though it's coming from your browser allowing you to download protected files directly to a separate machine (e.g. server).

VimFx is a Mozilla Firefox extension which introduces Vim-style keyboard shortcuts for browsing and navigation, significantly reducing the use of mouse, and allowing your hands to rest on the home row.
This extension provides unlinkable cryptographic tokens for websites that support the Privacy Pass protocol. For example, these tokens can be used on Cloudflare-protected websites to redeem a token instead of solving a CAPTCHA.

Create a list of URLs, and share it with your friends with just one link.

We use artificial intelligence and natural language processing technology to find your writing errors and offer smart suggestions.

Do you need to save time in your daily reading? Resoomer can help you improve your productivity by summarizing your texts for you in 1-click.

FLVto lets you download YouTube videos by URL and convert them into other formats such as mp3, avi and mp4. It can download multiple files simultaneously and has a built-in audio player and ID3 tag editor for music.

NelliTab is not a self configured "Speed Dial", this extension just shows in the new tab page your bookmarks, top sites, history and downloads by showing cached icons offered by sites you visit, nice, customizable, fast and with no privacy concerns.

A one-stop solution for online meeting and webinar needs which work on the browser without any downloads. Host audio/video conferencing and screen/application sharing across devices. Suitable for small, medium and large enterprise organizations.

Firefox add-on that lets you change headers and request parameters before they're sent to the server. Unlike proxy request modifiers, it's integrated into the browser, so it has no problem with HTTPS connections, client authentication certificates, or other features that...

"Private Network Master" is a browser extension to route all the browser traffic through an external server. Basically, the extension looks for a configurable proxy server of type HTTP, HTTPS, SOCKS4, or SOCKS5 from two free proxy providers and set the returned proxy...

Show the likes and dislikes bar over every video thumbnail on YouTube so that you can know its rating before watching it.

Extension that converts Web Novels (and other web pages) into an EPUB for offline reading. Works with many sites, including:
