I found this weird backspace bug today when I use non-english letter (which is 2-byte per 1 letter).
Since today's update (135.0.b1), it seems that while typing 1 characters, neighboring whitespace are recognized as a single chunk of the same ch aracter. So when I erased the letter, the space in front of it is also removed. This bugging situation was not appeared until yesterday.
Fortunately, I was able to roll back to the previous version (134.0.b10) and the bug didn't appear.
Can you examine this issue please? It's kind a critical issue for non-english firefox user like me.
