Dear all,
my nextcloud system is hosted by the German provider Strato.
Please delete everything above when creating your topic and provide the following:
Nextcloud: 13.0.0
Operating System: SunOS aklathep 5.10 Generic_150401-49 i86pc i386 i86pc Solaris
Apache something
PHP-Version: 7.0.27
After upgrading from 12.0.0 to 13.0.0 I receive the message that Firefox is not compatible with Nextcloud. (see the subject).
I tried this from varios devices: On iOS devices the login page has been rendered correctly.
On macOs with the most recent version of Firefox (58.02) I receive
Bool(false) This version of Nextcloud is not compatible with Firefox
Use another browser.
With Safari and Chrome everything is fine.
I will paste some logentries from nextcloud a bit later. May be some has a solution for this issue.
A friend had a similar strange behavior when he tried to install Addons and they were complaining that the Firefox version was too low.
We figured out that for some reason the version that Firefox reports was overwritten in the config. Maybe you can check that.
open a new tab
enter about:config in the address bar
confirm the warning message
in the search bar enter: general.useragent
some entries should be listed now
search for any entry that provides something that looks like a version string or version number
set this entry to default if it contains a wrong version number