updated June 2019
This is how to get rid of the “supported post” that placing ads on tumblr timeline in firefox:
- First you need to have installed the Adblock plus extension.
- Click on the Adblock plus icon, at the upper right corner of your screen and click at the “gear” icon from the menu.
- A new page appears with blocking options. Just check mark the first two and have unchecked the third one as shown in the screenshot below.
no need to save, no filters, nothing; just close the tab and you are fine.