Strange green words in posts

[Benchwayze]

I am getting certain words in green, with an underline, in most posts (not just mine). when I hover the mousr an ad pops up for woodwork plans. Does anyone know what this is and how to get rid of it please?

 

[CHJ]

Check your browser for toolbar add-ons.

Either something you have loaded intentionally or otherwise has added the facility to your browser.

Try a different browser to confirm whether it is specific to one or all browsers.

 

[Benchwayze]

Thanks Chas.
Seems it was ad-block. Got rid of the pop-ups, but then this green type appeared. Now the pop-ups are back annoying the hell out of me. Seems you can't trust some of these downloads.

Thanks again.