uBlock Origin Lite

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4.5 (

3K ratings

)

Extension Privacy & Security 17,000,000 users

128 support issues

For additional help, check out the developer's support site.

O Z

Apr 22, 2026

Youtube videos taking 5-10 seconds to load.

Isolated the problem to Ublock origin. Tested it with multiple devices.

Strategos

Apr 22, 2026

Custom filter lists are no longer possible.

Since last update April,21th

karthick raj

Apr 18, 2026

Download error: undefined in uBlock Origin Lite

Issue:
I am facing a download issue when using uBlock Origin Lite. The download fails and shows the error message “err undefined.”
This happens consistently while trying to download files from websites. Disabling the extension temporarily resolves the issue, which suggests the problem is caused by uBlock Origin Lite.
Details:
Extension: uBlock Origin Lite
Browser: Google Chrome
Issue: Download fails with error undefined

Osawa Susumu

Apr 18, 2026

使い方の質問

アドオン・広告ブロックするにはどうすればいいですか？

Osawa Susumu

Apr 18, 2026

広告ブロック

How do I block adverts on YouTube using Google Chrome?

Róbs Monteiro

Apr 12, 2026

Suggestion to add the ability to change the color of the block counter displayed uB icon

I would like to suggest implementing the option, in the uBlock Lite extension, to change the color of the block counter displayed on the extension icon. For some reason, in the Brave browser (which I use), the color of this number is blue. Even when I change the display color from white to black, or vice versa, the color of the block counter remains blue.

It would be interesting to allow manual customization to white or black, making it compatible with the user’s preference. In my case, I use the browser in dark mode, and having this information displayed in blue causes a bit of discomfort.

Manolo

Mar 31, 2026

Not blocking Ads on Youtube as of 31 March 2026

YouTube ads are not being blocked as of 31 March 2026.

Sean S

Mar 27, 2026

https://flightsim.to/

When downloading, ublock used to skip past the countdown timer on this site. Since they have updated, wwe are back to the countdown timer again. It would be great if this is resolved again, thank you

Morris Lawrence

Mar 26, 2026

wales

is a movie

роман Плоскодняк

Mar 24, 2026

уповільнє роботу хром

уповільнє роботу хром коли видаляю всьо нормально