This probably is not a EEVblog problem, but I just rebooted Firefox and now it seems to have lost short term memory for the zoom setting on some web sites and not others. I have to zoom in to read the text, presently I'm at 150% zoom. Every time I click to another page within the site the zoom setting resets to 100%. In fact, I only need to switch tabs and it resets the zoom. Restarting Firefox a couple more times does not fix the issue.
A google search didn't turn up anything... or actually far too much. There are tons of issues with the zoom setting going back for years. None that I found actually have these symptoms. Mostly they were more about new tabs, so the default setting in the options.
I guess I can try rebooting Firefox one more time.