I noticed the Menu Bar at the top of Firefox Nightly (latest build I believe just had another update this morning which didn't fix the problem) is completely gone. I've tried quitting/restarting Nightly, restarting my laptop, amongst the other common ways to fix errors and such. All it has at the top is the Apple icon and "Nightly". Pages load fine, no issues there- but the Bookmarks tab for example is missing. The entire row of options is missing. Help is missing too.

Really confused, should I just try uninstalling and reinstalling? That's the one fix I haven't tried yet as the re-syncing is a tad inconvenient but... It's very odd.