With a python script I have a kiosk-like screen on which there should be a pertpetual changing (delay: 20 secs) between 3 different pages with the same URL. Works fine ... sometimes for days, sometimes for hours, then it crashes. (I don't join the entire log entries, it's some 5000 lines; so here are the always repeating lines of warnings and errors) ===========================================> [Parent 3042, Gecko_IOThread] WARNING: pipe error: Datenübergabe unterbrochen (broken pipe): file /build/firefox-esr-HMuf61/firefox-esr-68.11.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 727 ###!!! [Child][MessageChannel] Error: (msgtype=0x35010B,name=PContent::Msg_RecordDiscardedData) Channel closing: too late to send/recv, messages will be lost IPDL protocol Error: Received an invalid file descriptor ###!!! [Parent][MessageChannel] Error: (msgtype=0x1E0074,name=PBrowser::Msg_StopIMEStateManagement) Channel error: cannot send/recv ###!!! [Parent][MessageChannel] Error: (msgtype=0x1E008F,name=PBrowser::Msg_Destroy) Channel error: cannot send/recv [Parent 3042, Gecko_IOThread] WARNING: pipe error (4044): Die Verbindung wurde vom Kommunikationspartner zurückgesetzt: file /build/firefox-esr-HMuf61/firefox-esr-68.11.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 358 <=========================================== What is happening? And why? Greetings Martin