Question pcloud and Firefox

[n8chavez]

Here's something odd. I don't seem to be able to login to pcloud with Firefox. I've even disabled uBo along with every extension, disabled tracking protection, and made sure DNS is not blocking it. I'm not sure what the problem is, but whenever I go to the login there's no place to enter the login info. If I start a new profile it works fine, and everything works fine in Chrome. Anyone have any idea what the issue could be?

 

[oldschool]

Anyone have any idea what the issue could be?

What changes have you made to About:config or user.js?

 

[n8chavez]

What changes have you made to About:config or user.js?

Only about 1000, literally. Selecting the changed option in about:config lists so many entries. Any way to whittle that down?

 

[n8chavez]

Oddly enough the developer tools inspects says there's a message on that page that says to use Chrome.

The inspector also says "Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at ‘https://e.pcloud.link/checkcookie?names=pcauth,locationid’. (Reason: Credential is not supported if the CORS header ‘Access-Control-Allow-Origin’ is ‘*’)."

 

[oldschool]

If it's important for you to use FF for that site then I'd say export bookmarks, uninstall, clean leftovers and then clean install with a fresh profile. I'd suggest checking this out
Firefox Privacy or: How I Learned to Stop Hardening and Love Strict Tracking Protection and using it if you go the clean install route. This will give you maximum compatibility for general usage.

 

[bobdoe]

Is it possible changing user agent would help?

How to Change Your Browser's User Agent Without Installing Any Extensions

If you ever wanted to make your web traffic seem like it was coming from a different browser--say, to trick a site that claims it's incompatible with yours--you can.

www.howtogeek.com

 

[n8chavez]

Thank you @oldschool for that very sound, logical, advice. That does seem like a better option than doing what I normally do; tweaking things until they break, tweaking them more trying to unbrake them before setting my PC on fire and starting over after I stop crying.

Thank @bobdoe, unfortunately chaging the useragent didn't change anything.

But...I figured it out!!

about:config < network.http.referer.XOriginPolicy has a value of 2. Changing that value to 1 or 0 worked!

 

[Alexei60]

If it's important for you to use FF for that site then I'd say export bookmarks, uninstall, clean leftovers and then clean install with a fresh profile. I'd suggest checking this out
Firefox Privacy or: How I Learned to Stop Hardening and Love Strict Tracking Protection and using it if you go the clean install route. This will give you maximum compatibility for general usage.

After two days of enabling/disabling usual suspects as ad blocking, cookie management, privacy badger, VPN, firewall I gave up and decided to install pCloud Save on a freshly reset PC with a fresh brand new Firefox: behaviour was still the same. Click on "Continue" and nothing happens. No funny stuff in the TCP/IP traffic, developer tools/network do not show anything suspicious.

 

[n8chavez]

If that's the case then it's likely a system-wide issue. Are you using any malware traffic scanner, dns filtering, etc., or anything else that might be blocking pcloud. I use it, and it works fine for me.