JS Blocker downloaded from outside the Safari Extension Gallery will cease to function in Safari 12 and macOS Mojave (10.14). Developer-signed Safari extensions are not supported in Safari 12. Safari extensions distributed in the Safari Extension Gallery are deprecated, and Safari 12 is the last release to support them.

Safari App Extension

I have no experience creating native mac apps; it will therefore be impossible for me to re-create JSB as one. Even so, Safari app extensions do not support the features required for JSB to function the way it does now (i.e. lots of functionality will be lost).


Users who downloaded JS Blocker from the Safari Extension Gallery will not be able to update beyond 5.2.2. Apple is no longer accepting submissions to the gallery.

Still want to donate?

  • Make a Donation via PayPal

    A PayPal account is not required, just a valid credit card. If you despise PayPal, but still want to support the software, please contact me to see if we can work something out, or use BitCoins.

  • BitCoin Address: 1FMQyRz2KuU2xDG3jPayvxGymYDutb6R5L

    Be sure to contact me when sending BitCoins so I can activate an email address.

It may take up to 24 hours for your email address to be put onto the server. If after 24 hours it still says that your email address was not found, please contact me as soon as possible. I go through many emails and sometimes some get looked over—all donations are put in manually.