What is on these unwanted pages? Ads?

Adblock Plus {web link} Blocks annoying video ads on YouTube, Facebook ads, banners and much more. Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Adblock Plus Pop-up Addon {web link} Adblock Plus Pop-up Addon extends the blocking functionality of Adblock Plus to those annoying pop-up windows that open on mouse clicks and other user actions.

Forum; Adblock Plus Homepage {web link}

Thanks for your prompt reply!

The 2nd and 3rd pages are Google and Pocket.

I have removed and reinstalled Firefox several times. That did not solve the problem.

Google what? An ad? Search page, home page?

I don't know Pocket. I called for more help.