Conflicting steps after install/updating

1: At end of update, I check box to Start Ccleaner;

as soon as I click Finish, Ccleaner opens Firefox to Ccleaner website. Then: ERROR - MUST CLOSE FIREFOX TO CONTINUE. This is stupid plan. Either don't offer start box or don't open browser!

2: Also, I would find "auto run at shut-down" much more useful than "auto-run at start-up"

1: At end of update, I check box to Start Ccleaner;

as soon as I click Finish, Ccleaner opens Firefox to Ccleaner website. Then: ERROR - MUST CLOSE FIREFOX TO CONTINUE. This is stupid plan. Either don't offer start box or don't open browser!

I expect that if I try to ANALYZE or RUN CLEANER with Firefox open.

Is that what you did ?

2: Also, I would find "auto run at shut-down" much more useful than "auto-run at start-up"

Me too, which is why I use a desktop shortcut

H:\Utils\CCleaner\CCleaner.cmd /AUTO /SHUTDOWN

And possibly the 'Automatically Check for Updates to CCleaner' box is checked causing the FF browser to open.