Actions with filter rules result in high CPU and memory load

[RoDen]

After upgrading to the latest Firefox and Adblock Plus I've got the following problem. Any action (adding/deleting, editing, cutting/pasting, enabling/disabling) on filter rules results in high CPU utilization (25/50% for quad-core and dual-core processors respectively) and memory load (+ 150-250MB) for a number of seconds (depending on CPU). The problem appears even on freshly installed OS (Windows XP SP3 32-bit) with Firefox v52.2.1 (32-bit) and Adblock Plus v2.9.1 with no Internet connection, I was just toggling a filter rule on and off.

I checked another PC with Windows XP SP3 32-bit, Firefox v19.0 and Adblock Plus v2.6.3.1 and the problem is not there. The CPU utilization jumps ~40% (dual-core processor) very briefly (for a second or less) and memory utilization is up ~30MB. So, it's either Firefox or Adblock Plus causing the problem.

If you create custom filter rules on an old PC frequently, the problem is really annoying, as Firefox freezes for a couple of seconds every time a new rule is added.

Everything else is working fine.

By the way, is Windows XP SP3 still supported?

[mapx]

There are some issues with the current storage implementation (preparing the new webext ABP - as required by mozilla). I get your same behaviour.

For old systems you should try uBo => https://addons.mozilla.org/en-US/firefo ... ck-origin/

[RoDen]

Thanks for the information. I've tested uBlock Origin and experienced no problems with rules creation/editing/deleting so far.

Hope they would fix Adblock Plus soon. But I'm not sure that I would switch back. Nevertheless it was a very useful and convenient add-on. Good luck!

[mapx]

forum/viewtopic.php?p=170209#p170209