No, because they're not loaded. Firefox doesn't load tabs after a restart until you click on them, and I use a tab unloader so tabs also get unloaded after a f

No, because they're not loaded. Firefox doesn't load tabs after a restart until you click on them, and I use a tab unloader so tabs also get unloaded after a few hours (mentioned in my original comment that started this chain). It's currently only using about 3% CPU.