uBlock Origin Lite
Extension Actions
- Extension status: Featured
An efficient content blocker. Blocks ads, trackers, miners, and more immediately upon installation.
uBO Lite (uBOL) is an MV3-based content blocker.
The default ruleset corresponds to uBlock Origin's default filterset:
- uBlock Origin's built-in filter lists
- EasyList
- EasyPrivacy
- Peter Lowe’s Ad and tracking server list
You can enable more rulesets by visiting the options page -- click the _Cogs_ icon in the popup panel.
uBOL is entirely declarative, meaning there is no need for a permanent uBOL process for the filtering to occur, and CSS/JS injection-based content filtering is performed reliably by the browser itself rather than by the extension. This means that uBOL itself does not consume CPU/memory resources while content blocking is ongoing -- uBOL's service worker process is required _only_ when you interact with the popup panel or the option pages.
Latest reviews
- Anonymous
- Currently works half way with youtube. While the annoying adblocker warning does appear, simply clicking a "recommended video" on the right then immediately clicking back purges the warning and plays the video normally. Can't wait for this to work properly again.
- Anonymous
- Stopped blocking YouTube ads, error displays: Ad blockers violate YouTube's Terms of Service It looks like you may be using an ad blocker. Video playback is blocked unless YouTube is allowlisted or the ad blocker is disabled. Ads allow YouTube to be used by billions worldwide. You can go ad-free with YouTube Premium and creators can still get paid from your subscription.
- Anonymous
- The real OG because Google/YouTube can go do one. I will not buy any products from them if they shove ads in my face all the time. Just adding to the list of reviews that I love this app and hope to see a fix soon because as of 19/12/2025 the blocker isn't working with the latest YT update.
- Anonymous
- Isn't working right now with YT but thank you for always updating it and keeping us ad free <3 We appreciate you
- Anonymous
- Its not working on YouTube, fix it please
- Anonymous
- works fine with yt now!
- Anonymous
- Doesn't work on YT but works pretty much everywhere else. That's the big kicker.
- Anonymous
- Worse than uBlock Origin (the original) and now doesn't work anymore
- Anonymous
- YT just KO'd UOL
- Anonymous
- amazing, i stream movies and the amount of ads i used to get was awful. i just heard of this app today, and its sorted it all out. i wish i could give more than 5 stars!!
- Anonymous
- POWER TO THE UBO TEAM
- Anonymous
- Total Ad Death
- Anonymous
- Getting popup from youtube, patch it, all the best and thank you for keeping us free from annoying ads by youtube.
- Anonymous
- Broken. 17 December 2025 update no longer works on youtube.
- Anonymous
- Youtube ads are worst than cable TV from 1990 which had better ads for things people actually would have wanted. Now ads are scammy subscription services and bad products nobody wants.
- Anonymous
- YT Stopped working properly on 18.12.25, i now get a popup telling me that im using an adblock, while i can close this, videos in 1080p now load like i would be using dial up
- Anonymous
- Fight with YouTube continues. We will win it, we people, not corporations!
- Anonymous
- Greed of Youtube sickens me.
- Anonymous
- Hello, Google. Please stop being so greedy. You’re already earning $XXX,XXX,XXX every second, yet you still want $XXX,XXX,XXX,XXX,XXX,XXX,XXX,XXX,XXX,XXX,XXX,XXX. Millions are getting “cancer” from the frustration caused by ads. More power to the uBO team!
- Anonymous
- Youtube strikes again, I'm sure this'll be dealt with soon
- Anonymous
- Works great , just stopped working on Youtube
- Anonymous
- It's wild y'all keep giving low stars because it's currently battling with yt people. They always manage to get it back. This is a 5* ext always. Keep up the good work, folks. Free and open internet for all.
- Anonymous
- Excellent blocker. I didn't want to switch from uBlock Origin because I thought this Lite one didn't have some features I wanted, but it turns out you *can* set your own cosmetic filters and trusted sites. Successfully imported them from uBlock Origin with no issues. Also, it works on YouTube again.
- Anonymous
- here we go again, need to fix yt again
- Anonymous
- Brave browser seems to be blocking ads successfully. Will be using that until/if this gets updated. YouTube fkn sucks now. A once great website ruined by corporate greed.
- Anonymous
- Today was the day when YouTube patched this cool little adblock, they need to update so badly.
- Anonymous
- Worked great until now. Needs a new workaround for YouTube.
- Anonymous
- youtube dies sometimes but its so peak
- Anonymous
- Just stopped working on youtube
- Anonymous
- Just stopped working on Youtube
- Anonymous
- It works perfectly!
- Anonymous
- best
- Anonymous
- Give the bro a second to correct this. JFC, people. Calm down
- Anonymous
- Stopped working on youtube. Or rather youtube found a way to detect uBlock again
- Anonymous
- works great!!! but I got warnning from youtube today.
- Anonymous
- It's not working on YouTube anymore :(
- Anonymous
- Just stopped working on Youtube
- Anonymous
- not work on YouTube now but i'm sure it's only temporary
- Anonymous
- best Ad Blocker
- Anonymous
- Great Extension, Adblocker so nice uBlock Origin Lite working
- Anonymous
- I don't know how well this works yet, but it certainly works better than my old ad blocker. So I'm very VERY pleased with it at the moment.
- Anonymous
- Doesn't block ads anymore on Youtube after recent update to Youtube. 3 stars for helping me through until now.
- Anonymous
- I hate google for making manifest V2. I hope they burn for their sins.
- Emerson Jones
- it actually works
- Tacolens
- Best adblocker on the web store
- Guy Cohen
- Amazing ad blocker! Kudos to developers
- Piyush
- don't go for anything else this is all you need nothing more nothing less
- Madison Schultz
- Incredibly impressed with the fix since chrome is blocking the full extension from the web store. 10 stars out of 5 honestly for actively decreasing memory usage and making websites usable again.
- Musco Karapoti
- This product is honestly amazing. It works really well and gives solid protection from Aggressive AD. I’ve been genuinely impressed with how much better it is than I expected. Definitely a five-star.
- Jevilstail
- It works and it's the best thing that exists. People are having playback issues, and this is not uBlock's fault, it's another attempt by corporate scum Youtube to get people disabling their adblock. They admitted to this on twitter, so please do not fall for it. Can get another extension for the Youtube playback speed controls to return until uBlock repairs it.