Not sure how to install an AdBlocker

patrick's Avatar


01 Oct, 2017 09:16 AM

Hi - Kind of a "first time user" as I've just gotten by 1.67GHz PowerBook down from the attic after a long hiatus :) This is therefore a newbie question - I apologise in advance :)

I've just installed PR3, but when I tried to install AdBlock Plus (the latest build, adblock_plus-2.9.1-an+fx+sm+tb.xpi), I'm getting the message "Adblock Plus is incompatible with TenFourFox 45.12.0". I don't have to run Adblock Plus - just wanting an adblocker that works well working under Adblock Plus.

Any suggestions would be welcome :)

Thank you, Patrick

  1. Support Staff 1 Posted by Chris (chtrusch... on 01 Oct, 2017 03:37 PM

    Chris (chtrusch)'s Avatar

    Congrats to your new top-of-the-line PowerBook :-)

    Go to

    Then scroll down to the Version Information, click "see complete version history" and install an earlier version of the add-on, e.g. v2.8.2.

    Or you could pretend to be on Firefox 52 (Preferences>TenFourFox>User Agent) and see if it installs (may not work).

    BTW I use uBlock, it's considerably more light-weight than Adblock Plus, but not as easy to use.

  2. 2 Posted by patrick on 01 Oct, 2017 08:33 PM

    patrick's Avatar

    Hi Chris,

    Thank you very much – will try this when I’m back home ☺.

    With Thanks,


  3. 3 Posted by gforwardjr on 24 Mar, 2018 02:16 PM

    gforwardjr's Avatar

    In October 2017, Chris mentioned adblockPlus v2.8.2
    Is this still the best version for the current TFF release FPR6 (SPR 1) ?

    Chris also mentioned uBlock; Do you know which version?

  4. Support Staff 4 Posted by Chris (chtrusch... on 24 Mar, 2018 03:28 PM

    Chris (chtrusch)'s Avatar

    AdblockPlus Version 2.8.2 is the last (therefore likely best) version compatible with TenFourFox. I strongly recommend uBlock Origin over Adblock Plus, though, as it's a lot faster. Version 1.13.8 is the final version compatible with TenFourfox:

    Note that the upcoming version of TenFourFox will have a basic adblocker built-in so you may not even need an additional add-on for blocking ads, even though you can still use one.

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