The issue with reddit and other sites should be fixed. It's not a proper fix, I've just set extension to not work on any site other than youtube or netflix and sites that you explicitly enabled via the extension button/popup.

I've also kinda solved the problem with the memory leak: extension will only check for changes in aspect ratio once per second if the video is playing. This massively reduces RAM usage back to acceptable/negligible levels.

On that note: I've also added an option for you to change how often the extension checks for changes in aspect ratio, but turning that number back to 30 (what it used to be) is not recommended because RAM usage will skyrocket for technical reasons (tl;dr of which is pretty much "blame javascript").