Starting with version 116, #Firefox will drop support for macOS versions prior to 10.15 as well as Windows 7, 8 and 8.1. This has understandably annoyed a few users so let me explain why we're taking this step: the maintenance burden of supporting several versions of each platform is very significant. I'll show you how much by citing three platform-specific bugs I've worked on over the past two years. 🧵 1/13