Firefox: Worst misfeature I encounter every day

Other than crashing often, Firefox has the idiosyncrasy of trying to make a click on the "Bookmarks" menu open a little bookmark menu somewhere else. Or it doesn't. You know, whatever is appropriate based on the whims of some egghead. Why would clicking there sometimes bring up a little boxy thing and sometimes bring up the menu? (I know why, but it doesn't matter. )

Whenever I click on the Bookmarks menu option, what I should get? A menu of my bookmarks. You know, like it does in Every Other Browser Ever.

Anything else violates the Principle of Least Surprise.

I even managed to get through this rant without using the phrase, "bag of dicks," except for now.