Just bought a new IMAC. It came with El Capitan OSX 10.11.1. Toby mac concerts for 2019. I used Time Machine to restore all my data and information. Everything carried over fine, and all my software is working fine. EXCEPT FIREFOX - version 42.0. It hangs up with a blank screen at boot-up.

/ / Announcement: On Wednesday, December 5, starting at 9:00am PST 12:00pm EST, Apple Support Communities will be down a portion of the day. Please pardon our dust as we work behind the scenes to make improvements to the community. We appreciate your patience. Read announcement Hide announcement On Wednesday, December 5, starting at 9:00am PST 12:00pm EST, Apple Support Communities will be down a portion of the day.

Please pardon our dust as we work behind the scenes to make improvements to the community. We appreciate your patience. Announcement: Upgrade to macOS Mojave With features like Dark Mode, Stacks, and four new built-in apps, macOS Mojave helps you get more out of every click. Find out how to upgrade to macOS Mojave > Read announcement Hide announcement Upgrade to macOS Mojave With features like Dark Mode, Stacks, and four new built-in apps, macOS Mojave helps you get more out of every click.

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