How to get my Gmail to work on my iPad?

Did anybody else have this problem? Perhaps the most annoying detail was that I was no longer able to do bulk deletes on my iPad. I have a lot of Gmail filters that send junk mail to a trash folder. Then I do a bulk delete in the trash roller, after I glance at the email titles to make sure there’s nothing in there that I really want.

Are use a lot of labels (tabs) to save my old emails and organize them. All the tabs seem to be pretty messed up at the same time that my Gmail “stopped working.“

Did anybody else have similar problems with their Gmail account on iPad? Oh, I use Firefox as my browser.

[Re-Titled by Moderator]