Does exactly what I'd hoped for.

Does not work anymore. Zen browser. o7

It seems to work perfect for my needs and wants. And I'm using the Zen browser with Cachyos.

とくに使うとは思わずに半信半疑でとりあえず入れてみた機能だが重宝してる。

2ちゃんで教えてくれた人ありがとう。

I don't think it actually works?

Just tried with twitter. The left panel buttons to zoom to fit (width and height) don’t work.

The addon is amazing, but I have two suggestions:
1- Could you please add a rotate image functionality?
2- Please allow customizing the addons input; for instance scrolling can be configurable to zoom or scroll the image.
Keep up the great work! :)

zoom-to-fit/height/width is not working on images whose natural size is less than the browser window size.

right click on image, view image. enjoy!

Great addon but on Firefox 89 panning is now bugged. You constantly zoom-in zoom-out on left click.

This feature should be builtin, thanks a lot!