The extension "happysale" is showing ads by "gifton" in Google Chrome and Mozilla Firefox, and I seem to be unable to remove it.
When I go to extensions in Chrome I can't see it, but when i go to the task manager in Chrome it's there, tagged as extension and I can manually shut it down, but that get's annoying over time.
I've checked the chrome-folder:
"C:\Program Files (x86)\Google\Chrome\Application\39.0.2171.71\Extensions", but it's empty except for an empty .json file.
I have also checked the registry, but I can't find it there either. Neither MalwareBytes nor my antivirus Mcafee find anything either. I have also resorted to using Malwarebytes anti-rootkit, but that also didn't give me anything.
I am at a loss as to what to do next.
Here is a copy of what stands in chrome://version:
"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --extensions-on-chrome-urls --test-type --load-extension="c:\Program Files\Google\Chrome\Application\Extensions\chrome\app" --load-component-extension="c:\Program Files\Google\Chrome\Application\Extensions\chrome\man" --flag-switches-begin --flag-switches-end
But in the directory Chrome\Application\Extensions is no folder for "chrome", and therefore no file/folder called "man".