If you have seen advertisements on Wikipedia, than beware as the organization has come forward and stated that they never run any kind of advertisement on the side. Furthermore, told the users that your computer might be infected with some sort of malware. This is what the team had to say about it:
We never run ads on Wikipedia. Wikipedia is funded by more than a million donors, who give an average donation of less than 30 dollars. We run fundraising appeals, usually at the end of the year. If you’re seeing advertisements for a for-profit industry (see screenshot below for an example) or anything but our fundraiser, then your web browser has likely been infected with malware.
It has even given tips in order to remove the adverts stating one example that we have seen installs itself as a browser extension. The extension is called “I want this” and installs itself in Google Chrome. To remove it:
- Open the options menu via the “pipe-wrench” icon on the top right, and choose Settings.
- Open the Extensions panel and there is the list of extensions installed.
- Remove an Extension by clicking the Remove button next to an item.