F-secure Safari Extension not working on macOS Mojave (Safari 12.0)

I installed latest macOS Mojave 10.14 Public Beta. This macOS version has many security updates eg. Safari no longer support dangerous legacy extension from webpages (outside Mac AppStore). Safari 12.0 on macOS Mojave support only trusted extensions from Mac AppStore. I suggest publish your F-Secure browser extension on Mac AppStore.


Articles about this change on latest Safari 12.0




Safari legacy extension not supported.png




  • Dear F-Secure community,


    It seems like the issue raised by Pawel still exists. Even now that the final macOS Mojave has been released. Is there a way to tackle the below error?


    Screenshot 2018-09-29 at 9.32.37.png 

    NADER Posts: 5

    Dear Laksh,


    Thanks a lot for your prompt response. Glad to hear we will have a fix / new release soon Smiley Happy.


    Wish you a pleasant day!



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