Post marked as solved
Click to stop watching this thread.
You have stopped watching this post. Click to start watching again.
contentPostList.repliessolved.tooltip
Replied In
Firefox Software Update can't be opened
I had the same issue until yesterday. Firefox came out with a new update version 67.0.4 which now opens for me. I had to Trash Firefox from the Applications Folder then download and install the new version 67.0.4 from Mozilla.You will have to select the "Open Anyway" button in the Security & Privacy/ General pane of System Preferences.