Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to block websites on mac browsers with aobo filter [title] Start firefox browser, navigate to " tools "-" add-ons ". [title] In this page, search " blocksite ". [step] Click " install " for installation.

Ending1: [title] Once installation has installed, double-click the website you want to block. [step] You may have to repeat this method a few times till it is developer approved. Ending2: [substeps] Chrome firefox does not support blocking websites completely; they serve the same purposes as using urls. [title] Click " manage " to change the appearance of an unsupported website. Ending3: [title] Once installation is complete click " allow install ". [title] Now you'll see a list of the websites that you need to block on your computer, and add-ons, adware, wifi and internet filtering. Ending4: [title] Click " restart now " to end the installation process. [title] Navigate to " my add-ons " and click " preferences " to load the options.

Answer format: ending1/ending2/ending3/ending4