I have a Firefox add-on that seems to inject ads on the top of the pages when I'm using search engines.
For example, for a search on hard drive on Google.com, I have this banner on top:
You may also be interested in hard drive dock, lacie hard drive, iomega hard drive, best external hard drive.
This is somehow related to "superfish.com"
I could easily find which add-on does by uninstalling add-ons, but I would like to have a method to do this.
I'm not saying that this add-on is a malware: I may have agreed to have these ads displayed in my browser, but I would like to find the terms, and even better, read the source code of the relevant part of this add-on.
So, what is the method to do this using built-in Firefox tools, Firefox add-ons, and possibly my OS (Linux in this case) ?