When I browse this forum (or start a new topic/reply etc), over time I get more and more instances of the current page in Firefox's session history (i.e. the record used for going back). It looks like it's caused when the banner ad refreshes.
Here's a screenshot which shows the problem (I used right-click to bring up a list of what Firefox thinks are all the previously viewed pages):
It doesn't seem to occur in Opera, but I prefer to use Firefox (probably out of habit and not wanting to change things). In Opera, I don't see the banner ad even though the ad blocking option is disabled and there are no plugins. In Firefox I have AdBlockPlus, but it's disabled for this site - on the condition that ads don't cause problems.
Edit: I think it's a Lycos Life advert. That's the one I see most frequently. I sometimes see one for a website I recently visited, but that doesn't seem to cause the refreshing problem.
Edited by R Soul, 01 April 2018 - 19:15.