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

iphone fold text

iPhone Fold Crease Measurements Revealed as Device Hits Production

Wednesday February 25, 2026 5:37 am PST by
Apple has submitted production line orders for its upcoming foldable iPhone, effectively confirming that the device will launch this year, claims a Chinese leaker. According to the Weibo account "Fixed Focus Digital," assembly lines recently received the orders from Apple, which has apparently allowed the leaker to learn the crease measurements for the device's 7.8-inch inner display....
Low Cost A18 Pro MacBook Feature Pink

Leaker Says Apple's Lower-Cost MacBook Will Have These 8 Limitations

Wednesday February 25, 2026 9:25 am PST by
Apple is expected to unveil its long-rumored lower-cost MacBook next week. Given it will be more affordable, this MacBook model will obviously have some reduced specs and compromises compared to the MacBook Air and MacBook Pro. While we are still waiting for Apple to announce the new MacBook, a leaker has shared eight alleged limitations to expect, based on an internal version of Apple's...
m3 macbook pro blue

M5 Pro and M5 Max MacBook Pro: What to Expect

Wednesday February 25, 2026 3:02 pm PST by
Apple is working on a new MacBook Pro that could launch next week ahead of the "Special Experience" planned for March 4, so we thought we'd highlight all of the rumors about the device so far. Design There are no rumors of design changes, and we are expecting the upcoming M5 MacBook Pro models to look just like the M4 versions. Apple will continue to offer 14-inch and 16-inch size options,...

Top Rated Comments

MakeAppleAwesomeAgain Avatar
71 months ago

Why are folks still on Mojave?
Because Catalina.
Score: 121 Votes (Like | Disagree)
71 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
71 months ago

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

Why are folks still on Mojave?
The better question would be "why are folks installing Catalina" ?
Score: 25 Votes (Like | Disagree)
71 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)