ChatGPT not working in Firefox. What to check and what helps
If clicking Log in on ChatGPT in Firefox does nothing, or the page loads but does not respond, you are not alone. This is a known issue that can appear suddenly, often after a browser restart or update, and may resolve itself without any changes.
Common symptoms
Common signs include the Log in button doing nothing, ChatGPT loading but not responding, or the service working in another browser but not in Firefox. Some users also find the issue appears, disappears, and then returns after restarting Firefox.
Why this happens in Firefox
Firefox applies stricter privacy, storage, and isolation rules than many browsers. ChatGPT relies on modern authentication and browser storage features. If browser state becomes inconsistent or corrupted, the site may fail silently rather than showing an error.
Practical checks that may help
Allowing cookies and site data for https://chatgpt.comand https://auth.openai.comcan help in some cases, particularly when using strict privacy or DNS filtering. Disabling Enhanced Tracking Protection for ChatGPT only may also help. These steps are sensible but do not resolve every case.
In some cases, these allowances are already in place and the issue still occurs due to browser state rather than active blocking.
Refreshing Firefox as a workaround
Using the Refresh Firefox option from about:support resets internal browser state while keeping bookmarks and saved passwords. This often restores ChatGPT temporarily, but the issue may return after restarting the browser. It should be treated as a troubleshooting step rather than a permanent fix.
When a different browser is the practical option
If ChatGPT is important to your work and continues to behave inconsistently in Firefox, using a different browser or a dedicated browser profile is a reasonable temporary solution. This is not a failure or unsafe choice, but a practical response to current compatibility limitations.