I found the answer, folks. The problem is the add-on Tile Tabs 4.8, of all things. It's on the add-on's website now. Just revert to 4.7 and you're good.

UGH!!! every time I want to ask my own question, it goes into an endless loop of ask here, you can ask new or search, so 'ask new'.. .then it takes me back to questions that are NOT relevant.

Anyway, this is the only way I can post.

4.0 worked perfect. 4.01 NOT! I'm having all sorts of issues, from being slow, to having to accept every single page and worse, sometimes frames... I can't view videos on FBook. I tweaked it to view pix b/c I couldn't do that either (and it depended on what page of FB I was on, so I had to do this like three times) It even shows banks as not trusted.

Also sync fails all the time. I finally 'removed' it to start anew, and now it gives me 'unexpected error' as soon as I put in my email address to get a new 'sync'.

I want my 4.0 BACK! how can i remove the latest update 4.01? Anyone know?

oh and add-ons aren't loading when you go to add-ons manager to 'get add-ons', this does not load!

Worked for me, GwaihirScout, thanks!

Today I've found the new version of Tile Tabs, it's 4.9 and it works. Thank you for help :-).