For the last day or so when I submit a post the window just spins for a while and when it stops the "composition area" (not sure the proper title, where one types to enter the text of a message) is still on the screen and the post has not been added at the bottom below the existing posts. Open another tab, go to that thread, and the post has been entered. I have not been hitting "submit" a second time because this was a problem a couple of years ago too, and that trained me to check first in another tab. firefox 134.0.1 on Windows 10 In case it helps, the last post where this happened was: https://priuschat.com/threads/exhaust-fumes-in-cabin-when-a-c-on-recirculate.253178/#post-3507629 Note: this glitch did not occur when creating this thread.