Privacy
Cookie Consent Banners: Why They Exist and How to Hide Them
If you've browsed any European website in the past six years, you've encountered the cookie consent banner — that persistent popup asking you to "Accept All," "Reject All," or wade through 47 categories of tracking preferences. They're everywhere, they're annoying, and they exist for a reason.
Why they exist
Cookie consent banners are a direct result of two pieces of EU legislation:
- The ePrivacy Directive (2002, updated 2009) — requires explicit consent before storing non-essential cookies on a user's device
- The General Data Protection Regulation (GDPR, 2018) — requires a lawful basis for processing personal data, with consent being the most common basis for advertising cookies
Together, these laws mean that any website serving EU users must obtain informed consent before setting tracking cookies. The "cookie banner" is the industry's solution — technically compliant, practically infuriating.
The consent management platform industry
Most websites don't build their own consent banners. Instead, they use Consent Management Platforms (CMPs) like OneTrust, Cookiebot, TrustArc, or Quantcast Choice. These platforms provide standardized banner templates, preference centers, and compliance reporting.
This standardization is actually what makes them blockable — because the same dozen CMPs power 90% of consent banners, a relatively small set of CSS selectors can hide the vast majority of them.
How Adless handles them
Adless takes a cosmetic-only approach to cookie banners — and, because banner-hiding is a convenience rather than core protection, it ships as part of Adless Pro:
- 93 cosmetic rules target the banner elements from all major CMPs with
display: none !important - An ISOLATED-world content script injects these rules early in the page lifecycle — before the banner animates in
- No cookie manipulation — we don't auto-accept or auto-reject cookies. The banner is simply hidden from view.
This distinction matters: by not interacting with the consent mechanism itself, Adless doesn't change what cookies the site sets. Your existing cookie preferences (or lack thereof) remain unchanged. The banner is simply invisible.
Is this legal?
Yes. Hiding a UI element in your own browser is no different from using a custom stylesheet or reader mode. You're not circumventing any access control — you're choosing not to look at something. The website's cookie behavior remains unchanged; you're simply not being shown the prompt.
That said, if you want to actively manage your cookie preferences, you can always disable Adless's annoyance blocking for specific sites using the allowlist feature.