Imgur Upload Problems

[lex24]

For the last two days I can't upload any images to Imgur using Add Images - Browse buttons from Imgur web site in Firefox.
Initially I suspected Firefox v57, but I have the same problem on much older Firefox ESR on Debian. Is it a known issue or something on my end?

The only way to upload images is to send them as attachments by email to upload@imgur.com

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Xubuntu 14.04 (64-bit), Firefox v57.0

[vasa1]

Have you tried using your browser in safe mode?

[lex24]

Thanks. I have tried the safe mode but the problem persists.

$ firefox -safe-mode

I have also tried the upload on another computer from Chromium browser v62.0.3202.94 with no luck either. So it looks like some kind of network problem, some port would need to be open (?), but my "network" is just two computers, a modem and a router, and everything was working fine just two weeks ago. And uploading by email from a web browser based email service works just fine.

[vasa1]

I've heard about some problems being resolved by resetting the router. I've never done that and so can't guide you.

[lissa77]

Even this problem also on Chrome browser not only in firefox !!!!