Brilliant, showstopping bit of internet sorcery. We love your mind!!!

Also used in conjunction with https://addons.mozilla.org/en-US/firefox/addon/dont-accept-webp/

This add-on is great! Really efficient, easy to use, discreet and customizable. Thank you!

It simply just works, really great. It simply convert WebP to PNG/JPEG.

WebP is good but have some limitations, most systems and software generally does not have WebP, especially Windows (with it's photo viewer) and all old version of Photoshop until CC 2023, and some users hated WebP for many reasons, incl. had to convert files.

since recently, the bar does not pop up on some images
https://staticdelivery.nexusmods.com/mods/5195/images/237/237-1680156627-317764161.jpeg
https://staticdelivery.nexusmods.com/mods/5195/images/220/220-1680061013-448014253.jpeg

Thanks a lot for the answer, now the bar appears.
Your supplement is the best, it is simply impossible to do without it.

I could not live without this extension. I do things that require me to save a lot of images all at once daily, so I've now grown completely dependent on this. Literally can't express how helpful this extension is to me, its my best friend in this cold dark world

Please add option to show bar for webp images only, I don't need this app for other images.

It works but it is very invasive and annoying, I want to convert and choose a setting, I want it conerted silently, I don't want an annoying popup displayed on each picture, even on those that don't need to be converted.
As it is I prefer to save as webp and change the format afterwards in Photoshop ( with the adequate plugin and a script it is faster, give more control and it is more reliable)

highly customizable and im finally able to download web straight as png. I swear this is the only add on that does such a simple task

This has become one of my favorite and most frequently used Firefox extensions. I often download pictures from the web and it's so annoying when they are in the .webP format hat makes them hard to work with. This extension makes it so easy to download them as jpegs; I just right click and "open image in new tab" and that picture now has the options for the download format. Easy peasy.

As for downloading gifs... while this extension does not do that, it's very easy for anyone to do without an add-on: Click on the gif you want. From the Firefox toolbar at the top select tools --> page info --> media. Scroll down the list and click on the one you want; then click "save as" on the right-hand side.

Works good for PNGs and JPGs but it doesn't work for GIFs ever...

Working as expected, would like to see feature to copy to clipboard the converted image.

It recently stopped working, but it was good while it lasted.

it works great but its way too confusing to configure. either the settings don't seem to behave the way they're supposed to or i just don't understand what they say, i really don't know. i just click stuff until it stays the way i want it and even then it kinda breaks downloading images in webp automatically for no reason if i refresh the link. so far the worst front end i've come across in 20 years of messing around with comptuers.