Firefox performance is at a devastating low.

[garyheard]

As a retired Network Quality Assurance Specialist and Tester, Firefox performance has been getting worst. 
Even though many of us love Firefox, but apparently Mozilla doesn't have a Quality Assurance Department to test changes and/or run test scripts.
Many critical complaints occurred after 152 updates.

My biggest complaint is that I choose to not update automatically, so I don't have the updated Firefox bugs but Mozilla ignores my preference and forces an update that has problems.

Whenever I use my computer on Amazon Prime, commercials freeze on the tv screen until I move the mouse  over the frozen screen especially when watchimg a LIVE TV Series.  Example:..........
https://www.amazon.com/gp/video/storefront?ref_=nav_cs_prime_video  

[majesticmini471]

I have been noticing some anonymous bugs since Firefox 151Beta. Are Java6>, .Net3>, Python3>, and Swift3> loving to crash commands and configurations? Has this not been noticeable since AI became mandatory? Users so need their own legal services. Commands would not fail their users and programs as often.