Most ad-blocking browser extensions look for certain file paths and file names (like those in Easylist ad-blocking) that are called within a page, and remove them from the version of the page that is rendered in your browser.
Of course, ad blockers can check and remove anti-adblocker scripts as well, and that’s what happens in the case of blocking tools, such as Adblock Plus and uBlock Origin, which always offer additional filters to download and add to the blocker so that it can’t remove the latest scripts.
But as its anti-adblocker scripts are added to the filter list, YouTube releases updated versions of those scripts. So now there is an ongoing arms race, organized by the website “Is YouTube Anti-Adblock Fixed”, which monitors whether the uBlock Origin browser plugin successfully bypasses YouTube adblock detection or not by comparing the list of YouTube anti scripts -adblocker. IDs is a list of text IDs blocked by the plugin.
Basically, the EU says that random websites are not allowed to browse your stuff without permission. That’s what most people agree on. Google itself prohibits Android app developers from using the QUERY_ALL_PACKAGES permission, describing user-installed apps as “personal and sensitive information.”
Lawton says YouTube “will certainly cooperate fully with any questions or inquiries from the DPC.”
The Office of the Irish Data Protection Commissioner did not comment on the matter, but Hanff says the DPC has assured him it is investigating the case.