Hello!
I have FireFox on both a MacBook and Windows PC. When I use Firefox on my MacBook, I absolutely love that I can quickly switch between tabs using CMD + Option + Right/left arrow key. I was pretty disappointed to find that Windows doesn't have this same feature. All Windows has is Ctrl + Tab, which is fine but I much prefer the macOS combo since I feel like I have more control over which tab I want to switch to and it's much quicker.
It would be awesome if you could add something similar to Windows. Perhaps Windows + Alt + Arrow keys or Ctrl + Alt + Arrow keys. Hopefully this can be implemeted.
Thanks!