# U block origin has problems with waterfox and comodo ice dragon

**URL:** <https://discourse.mozilla.org/t/u-block-origin-has-problems-with-waterfox-and-comodo-ice-dragon/21409>\
**Category:** Add-on Support\
**Created:** [November 10, 2017, 2:38am UTC](https://discourse.mozilla.org/t/u-block-origin-has-problems-with-waterfox-and-comodo-ice-dragon/21409 "2017-11-10T02:38:58Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![rigger202](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/rigger202/32/17400_2.png) [@rigger202](https://discourse.mozilla.org/u/rigger202)\
**Post date:** [November 10, 2017, 2:38am UTC](https://discourse.mozilla.org/t/u-block-origin-has-problems-with-waterfox-and-comodo-ice-dragon/21409/1 "2017-11-10T02:38:59Z")

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Hi , the most current version of U block origin version 1.14.18 causes Waterfox and Comodo ice dragon using yahoo home page (windows 7 64 bit system) to show banner ads and pop up ads and can not be blocked by U block origin it does not work, but if you go back to previous version 1.14.16 then banner ads and pop up ads are blocked , now if you use regular Firefox 32 bit latest version 56.0.2 then current version of U block origin is OK, I guess the last update to version 1.14.18 of U block origin is only compatible with Firefox current version ? because Waterfox and Comodo ice dragon are behind Firefox in versions , Waterfox is version 55 of Firefox and Comodo ice dragon is version 52 of Firefox which is why there is a problem I tried all different ways to get around this but only fix was roll back to older version of U block origin to stop banner ads and pop ups , this will be a big problem because with Firefox version 57 out next week 11/14/2017 there will be a lot of users looking for another version of Firefox , thoughts ? thanks Scott.