HI,
"We're sorry, but the Safari browser version you are currently using does not support the community toolbar".
Just in case, make sure you don't also have the CTLoader/Conduit "community toolbar" installed. Just follow the paths.
/Library/Application Support/Conduit
/Library/InputManagers/CTLoader
/Library/Receipts/ctloader.pkg
/Library/Receipts/<Toolbar name>.pkg
/Library/Application Support/SIMBL/Plugins/CT2285220.bundle
/Users/<User name>/Library/Application Support/Conduit
Once you have moved all the Conduit/CTloader/.pkg/SIMBL/Plugins/Ct2285220.bundle/Conduit files to the Trash, relaunch Safari.
I have the impression that MacBook Pro is less compatible with Internet download that MacBook, because since I bought it I have had many problems...??
Your hardware (MacBook) isn't the issue, it's third party software.
When downloading and installing third party Safari add-ons check with the developer site to make sure they meet your current system requirements such as your Mac OS X and which version of Safari you have installed. It's up to the third party developer to update their software, not Apple.
Carolyn 🙂