How can I enable or disable the built-in ad blocker in Firefox?

@dortha 

To enable or disable the built-in ad blocker in Firefox, you can follow these steps:

1. Open Firefox on your computer.
2. Click on the three horizontal lines (hamburger menu) in the top-right corner of the browser window.
3. From the drop-down menu, select "Preferences" (on macOS) or "Options" (on Windows).
4. In the Preferences or Options menu, click on "Privacy & Security" in the left sidebar.
5. Scroll down to the "Permissions" section and find the "Block pop-up windows" option.
6. Click on the checkbox next to "Block pop-up windows" to enable or disable the ad blocker.

When the tick mark is present, the ad blocker is enabled, and Firefox will block pop-up windows and certain types of ads.

It's worth noting that Firefox's built-in ad blocker is not as robust as dedicated ad-blocking extensions like uBlock Origin or AdBlock Plus. So, if you require more comprehensive ad blocking, you may want to consider installing these extensions from the official Firefox Add-ons website.