Firefox and TinEye. Don't say I didn't warn you, lol.
FF because it still has overwhelmingly the best quantity and quality of addons.
TinEye actually has its uses, er, I mean other uses. Haha. Reverse image search - there might even be more recent thingies that do the same thing by now; I've been using that one for ages.
Also, I think some online services (e.g., search engines) offer the same option, in case you want to stick with your current browser / addons setup.
edit: Not so sure about the classroom or Brianna thing, actually. But it's almost certainly Stoya. That's the trouble with these searches - you don't know what you're searching for (in words), so you have to rely on some guessing / deduction / luck.