Everything I use is encrypted as hell. What do I have inside? To be honest nothing. Just your usual stuff. But why the heck should I let someone to get into my fucking harddrive? No, let's make it as difficult as possible for those assholes.
Having said that, I'm stuck multiple times by my own encryption. Lost the keys, etc. And in case something happens to me, no one can access my legacy or docs. That's my only doubts. Moreover, I'm aware that it only protects my data at rest, while the PC is on, there are probably a zillion zero-days I'm not aware of.
I heavily use Firefox for Android on multiple devices since many years. It HAS annoying bugs. The most annoying for me is the tab view keeps forgetting the last tab you were on, when for example closing a tab from tab view or moving between tabs by swiping the address bar.
I think every person's bugs depends on how they use the software.
edit: quick word order fix.