January saw Adobe update its extension on Chrome browser systems. It did this silently alongside its "Adobe Acrobat Reader DC" software.
No one saw this in the changelog, nor was there a "Do not install the extension" choice. Supposedly users got a Chrome notification after they opened the browser to enable it or delete it after the update. I don't remember any notification.
When I checked my extensions, it was there, but not enabled. I've done away with it.
The extension is not secure and just adds more vulnerabilities to the browser, so I suggest you give it the heave-ho as well.
There are a few things you can do about this, per gHacks:
- Do nothing. Not recommended.
- Remove all Adobe products from your computer systems. If you don't rely on them, this is the best and only option to ensure that Adobe won't push another extension to your systems in the future.
- Blacklist the Chrome extension using Chrome policies for devices. The extension ID is efaidnbmnnnibpcajpcglclefindmkaj, and you find the option to do so in the Group Policy under Computer > Policies > Administrative Templates > Google > Google Chrome > Extensions > Configured extension blacklist. Blacklisting won't prevent Adobe from pushing other extensions to systems though.