Really great addon for adding image search into Firefox (and forks of it). If I could suggest it, can you add Copyseeker(.net) to the list of supported engines? It's one of the best imo.

неплохо работает

very useful

lots of options is nice

GOOD experiance

Good add-ons for image search, but have some bugs, as searching by bing always jump to result of "cn.bing.com/images/search?q=World+tourist+attraction&form=HDRSC2&first=1", i don't whether it work well outside china

Very useful addin, can you add the ability to search for images in the clipboard?

Used it a lot to identify the original authors of reposted art.
Only recently I found out about variety of features, especially the "capture" function which enables searching from website that disable the right click menu like instagram and pinterest which has been great.

Unfortunately it seems it doesn't work with Google's engine anymore. It's a shame google gave up on the old one for Lens.