My only device is a hard-wired laptop running Win7 and using both IE 11 and the ESR version 52.3 of Mozilla Firefox, it always kept updated. My Firefox usually has one window open showing a tab or two for the National Weather Service, a few more about gas prices locally, perhaps some for Ebay, and a couple tabs for one website I frequent, it having changed a few years ago due to security problems from the VBulletin system to this system:
For some months, my background activity seems to have increased when on the site, to the point that doing anything on my entire system can be slow. My Task Manager shows two Firefox.exe running, sometimes with their two CPU usages totaling 60% or more, this often continuing when the Firefox is minimized. With the window showing, little circling activity arrows at some (but not all) tabs for this site keep turning off and on, no matter whether the 'reload' button has just been cancelled, this while a message on the lower side of the page briefly displays what is trying to load. It seems as if the site software is constantly trying to update various parts.
I am not the only one on the site who's had the problem; other members recently complained that the back button wouldn't function. Sometimes, by double-clicking, it would work for me but other times it wouldn't and I didn't know if it had automatically updated the page or just high activity keep it too busy to react. Site moderators (all volunteers) have been made aware of the problem and have supposedly updated the site, etc. but the problem continues. Other site members have confirmed the problem doesn't happen with other browsers.
I have no optional add-ons running on Firefox and see no other settings on my Options page which seem to be involved. Is there anything on my system I can check to find out exactly what's going on or solve any of the problem for me, or can I at least determine/show that this is something that needs to be fixed by the site administrators? Might my contacting the XenForo administrators be a better approach to the problem, even though I have no authority for the site?
I can post some screenshots of CPU usage from a few months ago demonstrating some of the activity if it would be useful.
Any knowledgeable suggestions are appreciated.
Edit: I just had the standard Firefox window open but closed all tabs for that particular problem website. When I first open a tab for a GasBuddy site, the CPU goes up as it loads, and more so as ads download, but quickly clicking the 'stop reload' button puts a permanent end to that, in contradiction to the process with the XenoForo site. CPU usage is now ~3% with Firefox open but without the above problem site.
Edited by TooNew2, 11 August 2017 - 11:02 AM.