Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of OC Ad Bye-Pass

OC Ad Bye-Pass by OpenCourse

The things you keep closing stop arriving: ads and trackers, cookie walls, pop-ups you never clicked, app-install nags.

Available on Firefox for Android™Available on Firefox for Android™
0 (0 reviews)0 (0 reviews)
Download Firefox and get the extension
Download file
Scan the QR code to open this extension in Firefox for Android

Extension Metadata

Screenshots
About this extension
Getting to the thing you came for takes a few dismissals. Close the cookie wall, close the newsletter box, close the open-in-app banner, close the window you never clicked. By then the ads have settled in.

This stops them arriving.
The work went into one question: what should come off the screen, and what should not.

· Ad and tracker requests, stopped at the address.
Nothing is fetched, so nothing is drawn and nothing is spent in data.
· Leftover ad slots, hidden.
Korean site rules ship alongside the global ones, so domestic portals, forums and news sites are covered too.
· Cookie consent walls, and the newsletter and app-install nags that come with them.
· Windows that open out of nothing you pressed.
Links and buttons you actually clicked still open.
· On video sites, ads are cut out of the response before playback.
There is nothing left for you to skip.

Click the icon, choose "Pick element", and tap the thing on the page to take out that one thing.
No F12, no DevTools, and no need to know what a selector is.
Arrow keys widen or narrow what you picked.

An extension that runs everywhere can break anything.
So it switches off per site. Click the icon and drop that site's switch, and subdomains stop with it.
When the only recourse for a broken page is uninstalling, people uninstall.

Blocking rules update separately from the extension, so a site changing its markup does not mean reinstalling.

Your per-site exceptions and the rules you wrote yourself save to a file, and load back from it.

Your data stays yours.
There is no account and no server. Everything happens inside your browser, and what you looked at goes nowhere. The only thing fetched is the rule list, and that is data — selectors — not code that runs.

Open source, GPLv3: github.com/jshsakura/oc-ad-bye-pass
Developer comments
Blocking advertising, and the interruptions that arrive with it — cookie consent walls, unasked-for pop-up windows, and app-install prompts.
Rated 0 by 0 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
Permissions and data

Required permissions:

  • Block content on any page
  • Access your data for all websites

Optional permissions:

  • Access your data for raw.githubusercontent.com
  • Access your data for gist.githubusercontent.com

Data collection:

  • The developer says this extension doesn't require data collection.
Learn more
More information
Add-on Links
  • Support site
  • Support Email
  • Copy add-on ID
Version
0.25.0
Size
2.13 MB
Last updated
4 days ago (Sep 5, 2026)
Related Categories
  • Privacy & Security
License
GNU General Public License v3.0 only
Version History
  • See all versions
Tags
  • ad blocker
Add to collection
Report this add-on
Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Download

  • Download Firefox
  • Windows
  • macOS
  • iOS
  • Android
  • Linux
  • All

Latest Builds

  • Nightly
  • Beta

Firefox for Business

  • Enterprise

Community

  • Connect
  • Contribute
  • Developer

Follow

  • Instagram
  • YouTube
  • TikTok
  • Bluesky
  • Podcast
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version. Android is a trademark of Google LLC.