For a few days, Firefox has been freezing at certain pages and interactions. For instance: * Hitting the "compose" button in outlook online * Viewing this particular tweet: https://twitter.com/qrs/status/1383039053201870850 * Navigating to wikipedia.org Other pages work fine. When the freeze happens, the whole browser becomes completely unresponsive, including the window controls. The following is printed in the console if I launch FF from console: ``` ExceptionHandler::GenerateDump cloned child 10319 ExceptionHandler::SendContinueSignalToChild sent continue signal to child ExceptionHandler::WaitForContinueSignal waiting for continue signal... ``` I am running FF version 88.0 (64-bit) on Arch Linux under Gnome on Wayland, installed through pacman. What I have tried without success: * Using a new FireFox profile (no extensions, history, cookies, etc) * With and without WebRender * With and without Wayland composition (`MOZ_ENABLE_WAYLAND`) * All combinations of the two above * Restarting the system, updating the system, reinstalling firefox * Running mozregression With mozregression I had the issue for all builds since `56f6da03c7e352f53fa923b30f66dfdf09a34116`, for all older builds I get the "Gah. Your tab just crashed." message. I don't have issues with other programs or web browsers.