Firefox DuckDuckGo Privacy Essentials Extension NOT injecting CSS for Google Ads ( addons.mozilla.org )
My questions are:
- Does the DuckDuckGo Firefox extension "Privacy Essentials" add a local css file to every visited site?
- Can others reproduce this?
- Is this harmfull or not?
Background:
I have a simple static one page site with just one html and css file. It's completely tracker free. Debugging it a bit with developer mode (F12) on I discovered a second css file. This file isnt on my webserver but added local.
To pinpoint what caused this I removed every add-on / extension in my browser one by one, reloading and checking my website every time.
Took me a while because didnt expect this one causing it.
To reproduce:
- Install the extension from the link.
- Open a random site
- Check in developer mode the tab Style editor.
- Scroll and look for a file named %3Ais(%5Bid*%3D'google_ads_iframe'%5D%.css or something like that.
- Remove the extension and refresh.
- Check if the file disappears.
Content of the css file:
:is([id*='google_ads_iframe'],
[id*='taboola-'],
.taboolaHeight,
.taboola-placeholder,
#credential_picker_container,
#credentials-picker-container,
#credential_picker_iframe,
[id*='google-one-tap-iframe'],
#google-one-tap-popup-container,
.google-one-tap-modal-div,
#amp_floatingAdDiv,
#ez-content-blocker-container) {
display:none!important;
min-height:0!important;
height:0!important;
}
Edit 25-03-2024: Changed title to not give the wrong impression. See comments below.
