Apple Pulls Problematic Safari 14 and Security Updates for macOS Mojave [Updated] - MacRumors
Skip to Content

Apple Pulls Problematic Safari 14 and Security Updates for macOS Mojave [Updated]

Apple appears to have pulled the latest macOS Mojave Security Update (2020-005), which was released on September 24 alongside the macOS Catalina 10.15.7 update. Apple has also removed Safari 14 for macOS Mojave from download.

macbookairmojave
Both the Mojave Security Update and the Safari 14 update were causing numerous problems for those still running macOS Mojave, as outlined by Mr. Macintosh.

macOS Mojave users who installed the updates have been noticing memory issues, slow boot times and Finder stalling, numerous system.log entires, and crashes when attempting to use Migration assistant, among other problems. Complaints about the update started shortly after it was released, but Apple did not pull the updates until yesterday.

Those who had already downloaded the Mojave Security Update or installed Safari 14 should soon be getting a fix in the form of updated software that addresses the bugs that were introduced. Reverting to a Time Machine backup, reinstalling macOS Mojave, or installing macOS Catalina also seem to successfully fix the issues.

(Thanks, Jeff!)

Update: Apple has released a supplemental update for Mojave which presumably addresses the issues above. It should become available in your macOS software update.

Popular Stories

Four iPhone 18 Pro Colors Mock Feature

iPhone 18 Pro: Pre-Orders and Release Date

Thursday August 20, 2026 8:00 am PDT by
Apple has yet to reveal when the iPhone 18 Pro and iPhone Ultra will be announced and released, but the dates usually follow a familiar pattern. As usual, the iPhone event is expected to take place in the first half of September. Labor Day falls on September 7 this year. The last time the holiday was on that day was in 2020, but the iPhone event that year was delayed until October due to...
Four iPhone 18 Pro Colors Mock Feature

iPhone 18 Pro: Pre-Orders and Release Date

Sunday August 16, 2026 8:24 pm PDT by
Apple has yet to reveal when the iPhone 18 Pro and iPhone Ultra will be announced and released, but the dates usually follow a familiar pattern. As usual, the event is expected to take place in the first half of September. Labor Day falls on September 7 this year. The last time the holiday was on that day was in 2020, but the iPhone event that year was delayed until October due to the...
Apple Event Logo

Apple Accidentally Leaked More Than 10 New Products in macOS Update

Wednesday August 19, 2026 8:02 am PDT by
Apple on Monday seeded the macOS 26.7 Release Candidate, and the upcoming software update has seemingly leaked more than 10 new Apple products. macOS 26.7's code contains references to AirPods with infrared cameras for Visual Intelligence, the long-rumored foldable iPhone, an all-new Apple smart home hub, the first-ever MacBook and iPad mini models with OLED displays, an updated Siri Remote...

Top Rated Comments

MakeAppleAwesomeAgain Avatar
77 months ago

Why are folks still on Mojave?
Because Catalina.
Score: 121 Votes (Like | Disagree)
77 months ago

Why are folks still on Mojave?
Because Adobe CS6 does not work with Catalina and it was the last version that didn't require a subscription.
Score: 43 Votes (Like | Disagree)
jz0309 Avatar
77 months ago

Why are folks still on Mojave?
cause Catalina sucks
Score: 34 Votes (Like | Disagree)
JimmyBanks6 Avatar
77 months ago
It's time for a new head of software development/QAQC.
Score: 32 Votes (Like | Disagree)
Plutonius Avatar
77 months ago

Why are folks still on Mojave?
The better question would be "why are folks installing Catalina" ?
Score: 25 Votes (Like | Disagree)
77 months ago

How do we downgrade from safari 14? It’s starting to slow down and become slug-slug-sluggish
Apple makes this very easy! Reinstall the OS and restore your files from a backup.
Score: 25 Votes (Like | Disagree)