Firefox Addons Hotfix

Firefox Addons Hotfix:
For anyone experiencing issues since yesterday, here is the fix from official mozilla forums:

Just install this XPI instantly should fix FF:

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

Just wondering should these be turned off or leave as is