Firefox blames extensions, then it tries blaming the site itself for slowing firefox down. FIREFOX SLOWS FIREFOX DOWN. Accept this devs and stop trying to blame other people or organizations for your problems.
The reason they are called "your problems" are because they are your. problems. Blaming everything else is not going to make the experience better for users who know you are lying. We've used chrome and other browsers and know the slowness is all firefox, not any of these same extensions or same websites we visit in these faster browsers. Take ownership, be truthful.
The little pop-down banner should say "I am sorry, Firefox is slow, please give me some more time to catch up."
The people who use your browser know it is not fast, we aren't expecting speed, just honesty.
