Cannot update, install or remove software

Tumblweed updated 5 May. Cannot run YaST or Chrome. Firefox cannot add extensions; shows error that FF cannot change file.
I have searched for, “cannot update, install or remove software,” without a response which could help further.
Although I have been using SUSE for several years, I am still a beginner in many aspects.
When attempting to run Yast or Chrome it has no error showing.
Hardware custom build, i7 with 32GB and HDD 1TB,

Tumblweed updated 5 May. Cannot run YaST or Chrome.

did you try

zypper dup --no-allow-vendor-change

tell us your repo’s

zypper lr -d

Firefox cannot add extensions; shows error that FF cannot change file.

sounds like a user not a system error
I don’t like to guess but I’m thinking you’ve got a bad repo and mixed packages