Ok I found a solution:
blocking cookies for lens.google.com AND www.google.com fixes it. Login/logout doesn't worked - it still cheks for cookies so this is the only way.

Extension worked great, but has stopped on Firefox only today. I started seeing Lens again, but only on Firefox. Can you please check why this happens? thanks!

Great! perfect! awesome!

In the last three months does not work.
Please try to fix it , because Google Lens is very bad.
Thank you.

It just takes me to an empty page with Google Lens on the tab title.

Sadly, it stopped working a month ago or so.

just wanted to submit an up-to-date review, this add-on is working for me as of april 20th 2024 also google if you're reading this knock it off nobody wants your smelly lens app it's bad and it fails on every level to provide the services people actually go to image search for. you did a bad job and you should feel bad. gj add-on guy tho 👍

Sadly, doesn't work anymore...

Unfortunately, same experience as the reviewer Adramelia. The add-on used to work great – truly a five-star thing! – but now I just keep getting an error page with a blue monster fishing. :(

It doesn't work anymore. I get an error page with a blue monster fishing that says :

"Tip: Try entering a descriptive word in the search box.

Your search did not match any documents.

Suggestions:

Try different keywords."

It's sad, it used to be my favorite Add-on. Now I have to find something else :(

I've been happily using this supplement since it was released, but unfortunately in the past few days I've noticed that it doesn't work at all! :(

I drag any image into the image search engine, I search for a higher resolution version of any image, there are no results.
Until now there were search results, now there is nothing at all.
The result is just a fishing monster animation.

Did Google change something or is the extension not working properly?

This was a very important tool for me, I always needed it a lot.
What can be done now?

Thank you in advance for your answer!

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Thanks for your help!
I tried it, but unfortunately it doesn't work even after deleting the cookies. :(
I really need this device, I hope it can get better soon.

This is an amazing extension that allows you to use the old and original 'Google Image Search' without having to deal with the much hated 'Google Lens'.

Perfect ! Works instant ! Very pleased !

Google Lens is the worst

This makes Google image search work the way it used to.

Works perfectly. Now I can get the old search by image back.

I hate Google Lens and love Google Image Search. Thanks for that extension! It works great.
Edit: it stopped working great when used with Search by Image on Google add-on (context menu button to search by image). Or maybe that add-on no longer works at all because of changes made by google? I don't know.

How is this a thing for Firefox when, as far as I can see, Firefox does not have a "Search with Google Lens" option.

My original (one-star) review, based on my own misperception of what the extension was designed to do (see edits below):
"It doesn't do what I personally wanted it to do. I found out how to disable Lens in Chrome, and it turned everything back to how it used to be before Lens, but this extension doesn't do that.

What I wanted was to be able, like I used to be, to right-click an image in Image Search Results and select "Search image with Google" (or whatever it is in English; I get it in Danish), which would open a collection of that exact image in all available sizes. After getting the add-on, I still can't do that. :/"

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EDIT after a helpful response from the developer:
"Thank you for the advice, developer - it worked! It takes one more click than it used to, but I can live with that. :) But couldn't you somehow incorporate that function into Disable Google Lens? Then I'd give it five stars. As it stands now, I don't really know how to rate it. I mean, I'd like to give YOU good feedback for helping me, but your add-on (or extension; I don't know the difference) didn't help me at all, and its name and description made me think that it would."

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EDIT after another response:
"Thank you for writing again. I understand pretty much nothing of your clarification, haha, but I've decided to change my rating to three stars as a compromise between the fact that I believe the extension probably does what you promise it does, because you seem like an upright and competent person, and the fact that I don't know from first-hand experience that it does (since, like I said, I don't even understand what its purpose is). I mean, I can't bring myself to leave my rating at one star when you've been so kind to me and even solved my problem! I actually FEEL like giving the extension five stars to show my appreciation of you as a person, but I don't think that would be fair to prospective users. Anyway, with your other ratings, I think you'll be okay. :) Again, thank you so much."