When you're browsing Printables.com, you can send models to PrusaSlicer with a single click.
Download PrusaSlicer 2.6.0 (at least an alpha version) and enable this feature :
Configuration ➝ Configuration wizard ➝ Downloads ➝ Allow build-in downloader
Then go to your Printables in Settings -> Display & Language, and enable the Show PrusaSlicer button.
A new button will appear next to the download button on all 3D files on Printables.