That is not a browser problem.
Browsers do not “post” wallpaper.
Your operating system does that.
No one understands what you’re even asking?
A web browser that posts images as wallpaper?
Non-PC, like a mainframe?
I can’t keep up with who I am supposed to boycott. Benefits of age I guess.
Save the image onto your harddrive, find where you saved it, right click, Set as Desktop Background. FF might be the only one to put that “feature” in the browser, but really it’s easy to get around. Heck if you’re doing this a lot, put all those images in a folder, tell Windows to rotate images from that folder every couple hours.
Firefox. Right click, select ‘Set Image as Desktop Background...’
Did you mean a non politically correct web browser?
You need to get the picture file you want, then you point Windows to that file.
If you are wanting a Bing main page search background image without the Bing logo, you need to dig into the many files that make up that page, but you can get those images, too.
It can even adjust how you want the image posted: Centered, Fill, Tiles, Stretched, or Stretched Proportional.
waterfox - privacy based version of firefox.
BTW, you are running a PC aka Personal Computer and since you say Edge browser, it’s a PC running Windows 10.
To be clear, you want your browser background to be a custom image you upload.
Correct?
FWIW:
I presume you want a browser background of your own choosing and not their default or ‘image of the day’.
Here’s the deal about Edge: It doesn’t work on Win10, but it works on Win11 (I have 2 laptops side-by-side this evening as I set up my new one).
And about Edge: It sucks for customization, AND the image must be formatted for a pixel size which I cannot ascertain.
Can’t tell you which one to use since I’ve never tried that feature until I saw your post. That stated, I just tried Brave: It does NOT have a custom image option. And I do not find that option in AVG either. Nor Chrome.