I have been a Mozilla user for over twenty (20) years using Firefox and Tbird. The updates of September 2023 are terrible. Tbird is no longer able to send attachments and Firefox has cannot link to Yahoo mail, Amazon and some linked portions of Google. To put it another way, Mozilla products are unusable. I'm using Windows 10
Hardware:
11th Gen Intel(R) Core(TM) i5-11600K @ 3.90GHz 3.91 GH
32.0 GB (31.8 GB usable)
