Chrome & Edge. Mozilla has to play catch-up. Even though they are in the process of doing that, Chrome & Edge are ahead of them in the AppContainer dept.
Having a log of add-ons & plug-ins should not be the measuring stick of a browser, but unfortunately that is how a lot of people choose a browser. I use 1 or 2 and that is all, but I would bet the average member here is using 5 or more - and the more you add, the more you mess with and lessen the browser security. Poorly implemented browser add-ons and extensions causes more problems than the added features and protections the claim to provide. However, another pointless debate no doubt some will scream "Foul !"
Some people will add so many add-ons\extensions to their browsers that they actually break the browser or make it practically unusable. It's ridiculous.
Like Windows, when it comes to browser add-ons\extensions, less is more.
Here comes the smack talk. I am fully qualified on the topic since I am a U.S. citizen. I'm also a privacy advocate. Not stupid privacy, but common sense privacy. World governments are basically trying to enact rules such that the digital realm has no reasonable expectation of privacy because they cannot handle the volume of data nor the encryption. To me that defies all common sense. The FBI can hack your PC, in your home now. Your PC, in your home, has no privacy. However, your phone, cannot be wire tapped. That requires a $30,000+ wire tap requiring a federal judge to sign off on. Defies all common sense doesn't it ? So, if you are on your PC and having Skype or other App calls while the FBI is hacking the PC, those App calls would be inadmissible under current federal law - assuming the FBI did not also get a federal judge to also authorize monitoring of any Skype or phone app calls. But it is unclear what the courts would rule on certain other collected ancillary data in the absence of such a warrant. Mind-boggling. What an awesome age to be a legal scholar and to take on such cases and argue them in court. Sucky to be the guy in the defendant's chair and get the barrister bill though.
If one is so paranoid about U.S. intelligence, then one should stay off all digital devices - because it is a battle that one will never win. Even if one is a member of the clandestine services and knows how the agency programs work, one is not going to win. Period. I know a thing or two about U.S. intelligence agencies. And foreign intelligence agencies. The agency will win, and you will lose. If the agency has a mandate, then it will accomplish that mandate. No matter what. Period. End of game. It's just the methods that differ from nation state to nation state. While the surveillance state may be unacceptable for many, it has been written into law for well over a decade. Too little, too late. When everybody had the chance to actually do something about it, nobody did a damn thing. YOU let it happen. I wrote letters to my political leaders and representatives stating the laws were illegal. If 199,999,999 other people wrote such letters too, those Acts never would have became law. What can I tell you, Americans are political and legislative process ignorant, dumb, stupid and - worst of all - negligent and lazy. They let it all happen to themselves. So they deserve every last bit - because they have nobody to blame but themselves. The American citizen that takes government seriously and be involved is the exception, and not the rule.
You can say "Don't Tread on Me," but if you let them - and by them I mean those that govern - "Tread on You" that's your own damn fault. Give them the power to legally tread on you, then there is no use in complaining about it. In that case, the solution is a personal one, and it is called "Acceptance."