Works with 10.6 Snow Leopard (in Safari’s 32-bit mode): SafariBlock
As noted, the update to SIMBL enables extensions like SafariBlock to continue providing their functionality, provided the plugin developer(s) update their code. However, some extensions may work without updates if the applications they affect are run in 32-bit mode. This isn’t directly stated in John Siracusa’s excellent Snow Leopard review, but this part inspired me to try it.
In this case, provided Safari is run in 32-bit mode, the current version of SafariBlock will function correctly (Quit Safari first):
1. Select Safari in the Finder. (Easy way: hold the Command key and click the Safari icon in the Dock. This will reveal and select Safari in the Finder.)
2. Type Command-i or choose Get Info from the File menu or the right-click menu.
3. Check the box next to “Open in 32-bit mode” and close the Get Info window.
Launch Safari and SafariBlock should be doing its job once again.
If you’re still seeing ads where you normally wouldn’t, make sure to grab the newest (currently a beta) version of SIMBL and install it.