Have you tried changing your default mail app to Safari? It will still try to mail the page but you'll at least stay within Safari. That's the best solution I c

Have you tried changing your default mail app to Safari? It will still try to mail the page but you'll at least stay within Safari. That's the best solution I could find. https://apple.stackexchange.com/questions/261881/set-default-mail-client-in-macos-without-adding-an-email-account/422772#422772 https://apple.stackexchange.com/questions/261881/set-default... Also found you on stackexchange while looking for an answer https://apple.stackexchange.com/questions/108060/how-to-prevent-command-i-command-shift-i-from-opening-mac-mail-when-in-browser#comment686496_108129 https://apple.stackexchange.com/questions/108060/how-to-prev...