Firefox Addons Hotfix

Firefox Addons Hotfix:
For anyone experiencing issues since yesterday, here is the fix from official mozilla forums:
https://blog.mozilla.org/addons/2019/05/04/update-regarding-add-ons-in-firefox/comment-page-6/#comment-226171

Just install this XPI instantly should fix FF:
https://storage.googleapis.com/moz-fx-normandy-prod-addons/extensions/hotfix-update-xpi-intermediate%40mozilla.com-1.0.2-signed.xpi

Go away for a few days over Labor Day week-end and surprise on return.

Thanks starbuck for the banner and the links , fixed things and seems back to normal I guess .

So is this time to look at replacing Firefox with ? or is FF not a harvester and safe to stay with.
Any suggestions for a decent replacement ?
If needed .
what me paranoid , who said that

Thanks in advance

edit
also
Just wondering should these be turned off or leave as is