Whenever I restart Firefox, it uses about 30% of my RAM, however this increases over time and after a week it can be over 60%. No new extensions, tabs, windows opened, nothing changed from usage of day 1 to day 7. I have attempted everything in the support post for Firefox taking up too much RAM, and nothing has led to longterm solutions. This issue originally started about 2 months ago so it hasn't been consistent, but I haven't changed anything either in my browsing habits or the hardware of my computer to causes this change. Hardware acceleration is off, and using the same extensions (and more) on other browsers doesn't result in the same problem on those browsers. The problem is worst ''by far'' when I'm using YouTube.