Hi, I'm really sorry to hear that. Please note that: * Often, an issue is caused by the website handling old cookies/data incorrectly. In such cases, switching to a different browser (that you don't use daily) seems to resolve the issue, while what actually helps is starting from scratch, without the faulty saved data. * Sometimes, websites just don't want to support Firefox... because of additional expenses or whatever. Mozilla makes great efforts to resolve such kind of issues by investigating them, contacting the website developers and, in some cases, deploying fixes themselves. Here are standard troubleshooting steps for website issues, ordered from the simplest to more complex steps. While it may take some time to go through all of them, this should catch most of the issues and (see the last step) escalate to Mozilla if the issue appears to be global. # Please check if you have [[Enhanced Tracking Protection in Firefox for desktop|Enhanced Tracking Protection]] (ETP) enabled. You can do that by clicking the shield [[Image:Fx89ShieldIcon]] icon in the left part of the address bar. #* If ETP is enabled, try disabling it. # If the problem is not fixed, try [[How to clear the Firefox cache|clearing Firefox cache]]. # If it does not help, try [[Clear cookies and site data in Firefox|clearing cookies and data]] for the website you experience troubles with (''warning: you will be logged out on this website''). # If it also does not help, try [[Diagnose Firefox issues using Troubleshoot Mode|running Firefox in Troubleshoot Mode]]. If the problem doesn't persist, please follow the steps from [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems | this article]] to troubleshoot further. # If nothing from the above helps, try [[Manage Firefox profiles|creating a new Firefox profile]] and check if the issue persists there. If it doesn't, you can [[Restore bookmarks, passwords and data from an old Firefox profile|start copying files from your old profile to the new one]] to identify which one causes the issue. See [[About your important data and their files|this article]] on what files to copy. # Finally, if creating a new profile hasn't helped, please check if the issue persists in other browsers (e.g. Chrome, Edge, Opera or Safari). #* If it does, it is most likely an issue on the website's side. You may want to inform the website owner or administrator about that. #* If it doesn't, that's a compatibility issue. Please report it on [https://webcompat.com/issues/new WebCompat], so that our team there may be able to look into it. We'd also appreciate posting a link to your report here. I hope the above helps you. Anyway, please feel free to post here if you have any further questions or if you want to chat about a particular issue.