I am having an issue where the video frame on kodekloud.com (a learning platform) does not scale properly in a Firefox browser and displays it in full frame instead of sizing it up according to windows size. I have traced the issue to be present since the release of Firefox 134. I am presenting screenshots from both version 133 (where the behaviour was as expected) and 135 (the current one, where it is broken). The problem is reproducable in a private window without any add-ons and on multiple operating systems. It is however not present on any other browser (either Chromium based or Safari), so this a Firefox specific issue. Can someone please let me know what might have changed between the versions that might have caused this rendering issue and whether there is somehow a way to mitigate it. Is this a known bug or a "feature"? I have contacted the support on KodeKloud and they are more than willing to help, unfortunately this might be a specific Firefox issue, that will need more in-depth knowledge. Screen size: 32" Resolution: 2560x1440 OS: replicated on both macOS (Apple Silicon) and Linux Mint (Debian Edition) Firefox version: 135.0 on both systems If any more info, like the details of the inspection of the frame are needed, please let me know. Thank you!