I woke up one morning last week and booted up my computer (running Windows 7) and when I opened Chrome, ALL of my websites were zoomed in like 150%, although Chrome settings says it's at 100%. Every single site was suddenly very large. I manually smallered (is that a word?) every site I usually visit as I visited them. This is the first time I've visited here since it happened and it's like my monitor resolution was turned way down (it's currently at the highest setting) with everything a lot larger than it was before.
I ran the latest version of Malware Bytes and found only two small bits of adware that were basically nothing and deleted them. I tried to dig a little deeper, but never found anything. The biggest problem is when I run a Flash program or a video in Full Screen mode, it's almost non-operational from slowness. I dumped all my cache and cookies and browsing history and I'm about ready to restore Chrome to default settings with all the headaches entailed in that unless someone can tell me what happened and how to fix it.
Firefox seems to be mostly normal sized although I haven't used it much in the last few months. It's much too slow to run Flash programs and videos.
Maybe there's an even faster web browser than Chrome that isn't so leaky?