Would it be possible to add Base64 image support (the data:image/png;base64 type of files for example)?

Also this extension has the same bug as the old ImageZoom extension, on some images when you have them directly open in the page (direct link to image file), when you zoom in it progressively crops the top of the image you can't see it at all. Here is an image to show what I mean: http://lesfouleesdelasfas.fr/wp-content/uploads/2017/10/bryan_cranston_0095.jpg with this big image, depending on actions I do (direct zoom with clicks combination or mouse wheel) It happens that the top of the image is not visible anymore, image seems to start from the middle of it.

I'm not sure what information to provide or if this place is suitable to let you see the message.

Does exactly what it says, and does it well, just like Image Zoom used to do before.

Pretty helpful indeed,thank you!

great addon!

Please make Linux version

The only usefull way to use it with a mouse with scroller. I have a laptop and the mousepad is useless: it doesn't recognice the scroll, nor the zooming function, and zooming keys from dedicated keyboard are useless too. I haven't used it with two-scroll-mouse, but I gues the second will be useless too.
It have some "interesting" interaction in sites with embeded images like overleaf and scribd.

Great replacement for the old Image Zoom I used to use. However, I use it mainly for web development to check the flow of a webpage around images in a responsive nature. The problem is that when you zoom the image, it pops out of its html container and breaks the flow of the document. It is "floated". When zooming out, it behaves nicely, the image container reduces, and the rest of the page flows around it.
Zooming out is OK. Zooming in is the problem.
Could you add an option to allow enlarging the image without "floating" the image, to also increase the size of its container in the html flow?

Incredible true image zoomer! I love the ability to float zoom, as well as in-place zoom.

Thank you! I was looking exactly for this webext feature!

не работает ...

Spot on plugin.

Does not work on Ubuntu 16.04, FFv57. Just triggers the menu bar when pressing Alt

I use Zoom image since i installed firefox57 and the plugin fulfilledeverything i expect from plugin. It's simple, do its job and don't offer lot of additional useless functions. The image rotating is maybe useless in real, and it can be good to switch the rotating mode to 90° steps.
One problem which I found make the extension allmost useless for me. I use also mouse gestures extension (foxy gestures). Zoom Image don't verify, if the righr mouse buton is still pressed, when is sooming or rotating the image. When i do a gesture where you click the right button and move the mouse (open link in a new tab) from the picture link, the zoom plugin works like the right button is still pressed. it is zooming the link-picture instead of scrolling the page untill you press and release the right buton again. Then you have to click also the left button, or pless escape, to hide the context menu. I hate this bug and thinking about some other zooming plugin.

Zoom Image jsem začal používat s firefox 57 protože můj předchozí plugin není s padesát sedmičkou kompatibilní.
Doplněk splňuje všechno co od dobrého doplňku očekávám. Je jednoduchý, rychlý, dělá přesně to co dělat má a nevymýšlí jak být něčím víc, než kvůli čemu jsem si jej nainstaloval. Plynulé otáčení obrázků je dobrá kravina, ale nemyslím že by byla reálně využitelná. Spíš kdyby se dala přepnout na krokování po 90° . to by začalo vypadat užitečně.
Jeden neduh na který jsem narazil hned první den, mi ale její používání velmi ztěžuje, ne-li znemožňuje. Zoom image si neověřuje, jestli je pravé tlačítko myši stále stisknuté, když má zoomovat nebo otáčet obrázek.
Používám ještě doplněk pro gesta myší (foxy gestures) a když otevřu novou záložku z obrázku kliknutím pravým tlačítkem a tažením, Zoom Image nezjistí, že už jsem pravé tlačítko uvolnil a do dalšího kliknutí pravým tlačítkem se chová jako by bylo stisknuté. Takže po každém použití gesta pravým tlačítkem, musím ještě znovu kliknout pravým tlačítkem bez gesta a následně levým aby zmizelo kontextové menu. Pěkná otrava.

Image zoom is quick and easy to use, does what it is supposed to do without any fuss and is very lite on resources. Just what an add-on is supposed to do and supposed to be.