>>>Had this in the last 4 days:
>>>was logged in in FF,
>>>looked something up on tablet without logging out on PC
>>
>>Do you mean you switch to another device to log also to UT?
>
>yes, Nexus tablet with Dolphin browser
>
>>
>>>back on PC my session was removed by second log in
>>
>>Do you mean on your original session, the login was no longer recognized and you were forwarded to a login page?
>
>yes, login page was shown but after that login the blank page happened. After next login, usual page was shown.
>
>FF 43.0.3
to paraphrase Lutz Schefflers words: Use another browser