> Image search? I have a search engine for that.

I'd use it. Why does it need to be another site? I'd trust Mozilla more than I trust Google. Do you really feel different?

Plus, Search by Image[0] is one of the most popular extensions, with 3x as many people using it as tree-style tabs.

I don't use it but a grammar tool is the next most popular[1], so I could see this being quite a useful feature.

But the other stuff, I'm with you. I like translate but I personally don't care for dubbing, summarizing, or anything else.

[0] https://addons.mozilla.org/en-US/firefox/addon/search_by_ima...

[1] https://addons.mozilla.org/en-US/firefox/addon/languagetool/