Block Facebook Access in Mozilla

If you wish to personally block your access on Facebook to your Firefox Mozilla, here's how:

1. Mozilla Firefox > Go to Tools > "Add-ons"

2. Click "Get Add-ons", on the upper left side.

3. Type "blocksite" in the search box. When "BlockSite" add-ons appear, Click Install. Restart Firefox when prompted. (Note: if BlockSite add-on has been added already it will no longer show up on the list.)

4. After Firefox restarts, go to "Tools" > "Add-ons" > Click "Extensions" on the upper left side. "BlockSite Add-on" must now enable.

5. Click "BlockSite" options. Check "Enable authentication," then enter your desired password This is  to keep other users from changing the settings in "BlockSite" without your permission.

6. Click the "Add" button, enter the URL of the website you would like to block ex: https://www.facebook.com/, then click "OK." Repeat to add more sites, or click the "Remove" button to delete the URL.