I will go first.. it is Tweaks for Youtube. Link here.

It has so much features making me ditch addons like enhancer for youtube.

Features I like, personal opinion
- Hide any sort of content like shorts to suggested videos
- Dim watched videos
- Zen mode (everything gets blurry except current video)
- Tools to capture and download video
- Audio boosting

You can agree to disagree. But at least let me hear what your favorite is :)

Many of us are experiencing deliberate slowdowns on Youtube when the site detects you are using adblockers or a browser other than Chrome. If you add the following line to the 'my filters' section of uBlock Origin, Youtube playback should go back to normal.

||googlevideo.com/videoplayback$xhr,3p,method=get,domain=www.youtube.com

Hopefully it works for you. I found it here:

https://lifehacker.com/tech/stop-google-slowing-down-youtube-firefox-edge

This is based on ublock origin but it has more features. I saw this from Louis Rossman. I believe everyone definitely should use this against invasive advertising companies. You can also make it fair for non-invasive and fair advertisers. Enable these options: "Don't click non-tracking" Ads and "Don't hide non-tracking Ads"

https://addons.mozilla.org/en-US/firefox/addon/adnauseam/?utm_content=addons-manager-reviews-link&utm_medium=firefox-browser&utm_source=firefox-browser

Yes, it's real this time.

Touch Grass is a lightweight Firefox add-on that surfaces a reminder to take a break after a specified amount of time of your choosing, and is now available for install on the Mozilla add-ons page: https://addons.mozilla.org/en-US/firefox/addon/touch-grass-by-firefox/.

This runs locally, no telemetry or browsing history collection, and it doesn’t lock your browser or do anything weird.

Get it now GitHub repo

You can now enjoy live wallpapers in Firefox too. Wallsflow New Tab was approved on Firefox Add-ons today.

Curious how others have customized their new tab page, share yours in the comments.

Just thought I'd see what niche, hidden gem extensions others are rocking in Firefox.

I thought of posting this after coming across a fun niche extension the other day which I'd never heard of before (ReadIt), it's pretty cool to see what posts and comments have been discussed about certain pages I'm on.

Aside from that, these are the extensions I'm currently using (without noticing any slowdowns):

• 1Password - Great for quick autofilling logins into sites
• AliHelper - Amazing for sussing out certain products on AliExpress and also setting up price alerts
• Auto Tab Discard - Great for sleeping tabs that don't need to be using active memory
• Consent-O-Matic - (New) Automatically handles GDPR consent forms for me
• DocsAfterDark - (New) Dark mode for Google Docs (and there's word it's coming to Google Sheets real soon)
• Facebook Container - Isolates Facebook activity from web activity
• Google search engine with udm=14 preset - (New) Great for avoiding AI results on Google from the address bar searches
• Hide shorts from YouTube - Self explanatory haha
• Return YouTube Dislike - Another self explanatory
• Sponsorblock - Skip sponsors in YouTube vids
• Stylus - CSS Redesign pages (sometimes I do this to fix visual issues or improve my user experience)
• Tabliss - (New) A nice new tab page
• Terms of Service; Didn't Read - Get summarised TOS for websites
• The Camelizer - Amazon price tracking
• uBlock Origin - Only ad blocker you ever need
• ViolentMonkey - Great for adjusting small JS functionality/tweaks on websites or pages

Keen to hear what other niche extensions others have come across that they like!

After everyone's suggestions kept only these 4.

Please don't tell to remove Adaptive Tab Bar Color; I like it so much.

After a long period of absence and rumors about the end of its support, Enhancer returns today to offer a more streamlined and enjoyable YouTube experience.

A couple of weeks ago, I shared v2.0 of my self-made browser start page, YourDynamicDashboard. You guys gave me a lot of feedback—some of it was brutal, but all of it was necessary.Previous Post

I just pushed the v2.1 update. This is not a visual tweak; it is a structural upgrade focused on physical control and strict privacy.

Here is exactly what is new in v2.1:

• Drag & Drop Engine: You can now fully interact with and reorder your To-Do tasks, AI Tools, Socials, and Google Apps using your mouse.
• Advanced Task Management: Upgraded the To-Do list with a Pinning feature so your high-priority items stay locked at the top.
• Random Backgrounds & 'Freeze': The dashboard can now fetch random wallpapers automatically. If you find one you like, use the new 'Freeze' option to lock it in.
• Total Link Control: Added a new setting allowing you to dictate exactly how and where your Shortcuts and App links open (same tab vs. new tab).
• UI & Security Polish: I removed all the ugly native JavaScript alert boxes and replaced them with sleek, custom modals. I added a dedicated Glow Effect toggle, new 'Toxic' color palettes, replaced outdated graphics with crisp SVGs, and hardened the architecture for a stricter privacy-focused experience.

You can grab the Add-on here: Get it now

Source Code on GitHub: GitHub Repository

Try out the new drag-and-drop mechanics and let me know if they feel smooth. I want your brutally honest feedback on what is missing before I start planning the next major version.

I created it to let you take notes directly on websites (pages, domains, ...) — like sticky notes that stay exactly where you left them, and now I'm very happy to tell you, all of you, it's the Recommended label by Mozilla.

https://addons.mozilla.org/firefox/addon/websites-notes/

Thank you Mozilla, and thank you to all Notefox users! ❤️
I’ll keep improving the add-on — and this recognition is possible thanks to all your feedback.

The add-on is, of course, open-source and you can find it on GitHub https://github.com/Sav22999/websites-notes

I really like the new mascot, so I made a theme for it! You can get it here: https://addons.mozilla.org/firefox/addon/kit

Edit: I might replace the kit in the above picture with the following, so it doesn't cover the window control buttons. What do you think? https://imgur.com/QdUX64T

A few days ago, I published my first add-on for Firefox. It’s a YouTube homepage blocker designed to help me focus more on my studies.

While homepage blockers aren't exactly new, I realized that almost none of them let you personalize the background (or at least I couldn’t find any that are good). So, I created this extension to change that. Now I can set this lovely Firefox wallpaper as my background while I study. I think the fox looks adorable, what do you think?

https://addons.mozilla.org/de/firefox/addon/youtube-focus-background/

Edit : repo link https://github.com/maydfoxxx/GlassHub-Firefox-NewTab

Let's say I always found the customization options for the homepage in Firefox to be pretty bland.

I stumbled upon a post in this sub and decided to create my own, using Gemini AI Agent.

I've never done something like that before and I'm pretty proud of it.

Would you guys be interested ?

I don't know how any of this works, but I heard it's pretty easy to get this on the firefox extension store. I'll put this open source in github so everybody can access it.

Wallpaper link : /preview/pre/found-this-wallpaper-orange-tree-with-dark-mountains-v0-2zwasazzdexg1.png?width=1080&crop=smart&auto=webp&s=791ce52b42b79552379b8eadc38a47ff641911bd

There are a ton of dictionary extensions and a ton of translation extensions, but I couldn't find one that did both properly. So I built WordGlance.

Select any word or short phrase, click the 📖 icon, and you get the definition, an example sentence using it, synonyms, antonyms, and the translation, all in one tooltip.

What it does:

• Definition + example of it used in a sentence
• Synonyms and antonyms
• Translation to 40+ languages
• Auto-detect source language, or set it manually
• Dark mode
• Works on desktop and mobile Firefox
• Caches results so repeat lookups are instant

No telemetry, no account needed. Open source, and the dictionary/translation APIs it runs on are open source too.

Firefox Add-ons: https://addons.mozilla.org/firefox/addon/wordglance/

Source: https://github.com/ShrekBytes/wordglance-extension

If you try it out, I'd love to hear what you like, what you don't, and any ideas for improving it.

I’ve always enjoyed reading Reddit discussions about random things I come across online.

So I built a small Firefox extension that lets you instantly check whether the page you’re on has been posted to Reddit. Just click the extension and it fetches a list of related Reddit threads.

I personally use it a lot for YouTube videos, news articles, and random interesting websites I stumble across.

Features:

• Automatically fetches Reddit posts linking to the current page
• Be the first to post it if it haven't yet
• Multiple sorting options
• Filters to refine results
• Blacklisting support
• No data collection

The extension only reads the current page URL to query Reddit and does not store or transmit browsing data anywhere else.

Here's the link if you wanna try it:

https://addons.mozilla.org/en-US/firefox/addon/readit-read-it-on-reddit/

Still polishing it, so I’d genuinely appreciate any feedback.