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Reviews for uBlock Origin

uBlock Origin by Raymond Hill

4.8 Stars out of 5
5
19,853
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1,270
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375
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204
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Review by Firefox user 15701315
by Firefox user 15701315, 7 years ago
Did and extensive testing of uBlock after the new permissions. I also compared with the previous version. The conclusion: Previous versions of uBlock did NOT track your IP and/or device. This new version that request new permissions, DO use your host name and access your IP.

There has been a lot of speculations about this recently. I have no idea what happened with uBlock, so I choose not to go into that. I can, however, confirm that there is data mining going on with this version. What happens with the user information (IP address, Host information / Name and Device information) I have no way to know from the tests.
22,143 reviews
  • by Firefox user 20184476, 5 hours ago
  • by FullByte, 6 hours ago
  • by Harry Elmokyan, 13 hours ago
    The best ad blocker. Still works great for Youtube ads.
  • by Miku2007, a day ago
    This extension is a must have when watching YouTube. I have never seen a single ad since I started using it in March 2026. It blocks all YouTube ads and allows you to immediately start watching videos, unlike another adblocker I tried called Adguard, which would make the screen freeze whenever there's an ad, then you need to reload and wait for a few seconds to watch the video. By contrast, uBlock Origin is a much smoother experience.

    By the way, uBlock Origin blocks almost all ads and redirects from every website I visited. Besides, I can customise the filter list to block specific components of a website that i don't want to see.
  • by Vermile, a day ago
  • by yellowfox, a day ago
    Thank you for being a hero, keep manifest v2 and uBO alive on fox!
  • by TOTGB, a day ago
    Just what I you need to block anything you don't need, save bandwitdh, block ads, etc. Ublock has made using firefox problem-free.
  • by Alex, a day ago
  • by AP, 2 days ago
    You'll never see an ad again. Works like a dream, no wonder Google hates it.
  • by spaceKite, 2 days ago
    ublock origin for a calmer internet
  • by Firefox user 14918492, 3 days ago
    Absolute the best and a must-have extension.
  • by addon, 3 days ago
  • by Максим Егоров, 3 days ago
  • by Firefox user 20166575, 3 days ago
  • by Rexen, 4 days ago
  • by NGBGnc, 4 days ago
    TOP STAR RATING PLUS! Sable, dependable, reliable,and rarely any issues; but if a block occurs you can always stop block, set as an "always" exception site, or exception always page.
    Genuine time and hassle saving app of first and best choice!
  • by Firefox user 20176458, 4 days ago
  • by Jay, 4 days ago
  • by the shinobi, 4 days ago
    indispensable !!!
  • by Berat, 4 days ago
  • by Northern Yellow Warbler, 5 days ago
    Always works perfectly, doesn't require any attention, just does its job well.
  • by RenD, 6 days ago
    The best
  • by Freezeezy Peak, 6 days ago
    Esta buena funciona para todo tipo de anuncio publicitario. 🥞
  • by Benjamin, 6 days ago
  • by BAZ.Andreas, 6 days ago
    Can not complain at all..its just that amazing even if it has its own issues sometime that is negligible.