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You should upgrade or use an alternative browser. I have read and noted, the 'given' opinion on adding 'apps' that mess with the mac operating system.
Prior to reading the "Rumors" opinion, I installed 'CleanMyMac' from the software house.
Question: Is it sensible to keep or uninstall? It has a well presented Home page, however, might
this just be a good graphic presentation with no effect on my Mac Sequoia o/s, or...........