Firefox won't open any webpages
Firefox won't open any websites at all and I'm not sure why? i've cleared the cache, refreshed, reinstalled, all to no avail.
I appreciate that you may have done this already, but please can you restart Firefox which should resolve this issue.
Earlier today, Firefox became unresponsive due to a change in defaults by a cloud provider which triggered a Firefox HTTP/3 bug. We disabled the configuration change and confirmed this fixed the issue.