I can't open my Samsung tablet: just get a screen with the the message "Unfortunately, the process com.android.systemui has stopped." with the option OK. Pressing OK brings up a Samsung disclaimer screen, and confirming that gets me back to "Unfortunately.... etc.
Online searches suggest going to "Settings" and uninstalling updates to Google App, which is no help because I can't actually open anything.
Thanks for any suggestions.
(This is not a good week for my tech stuff. Luckily yesterday the tablet was working which allowed me to use your advice to fix the problem of not being able to use the browsers on my computer.)