I've discovered that in my Users/UserName/AppData/Local/Temp folder, there are thousands of files eating up space with name "cubeb-shm-#####-#####-input" and "cubeb-shm-#####-#####-output", where "#####-#####" is a 10 digit number seperated by a hyphen. I did a basic google search for these filenames and found several articles that talk about how firefox uses these, and normally creates and then deletes them, so there should only ever be one of each (input/output) file at a time. For some reason, I have thousands of these files, and they are eating up hundreds of Gb's of space on my hard drive. I only discovered this because my computer notified me I was running out of space. I manually deleted them, but I don't want to have to do this regularly, since it seems it's not expected behavior for Firefox. I'm running the 64 bit version of Firefox 85.0.2, and there are no new updates available at the time of this writing. I'm really hoping someone can help me figure out how to get Firefox to appropriately manage these files. Help me Firefox community! You're my only hope!