Block Ads, Trackers and Remove Cookies
UltraBlock is an adblock extension that blocks ads, trackers and third-party cookies. Websites load faster, look cleaner and you will not be tracked.
Rated 4.2 / 5 by 46 users on Chrome Web Store
Block ads and trackers
UltraBlock automatically blocks all ads and trackers while you surf the web. You can also block services manually on a specific site.
Remove third-party cookies
Advertisers place cookies on your computer with the purpose to track you. UltraBlock removes third-party cookies after each visit.
Protect your privacy
UltraBlock makes it hard for big-tech to track and profile you by removing referrer headers and rotating user-agents.
Ad and tracker database
UltraBlock maintains a database with 1.723 hostnames from ads and trackers, showing what companies track you on each website.
See where data goes
We capture the IP address of each tracker revealing the geolocation and country where your data is stored.
Speed up your browser
UltraBlock automatically blocks tracking tools that slow down websites, making them load over 55% faster.
Trusted by Thousands
Trusted by thousands who want ads gone and unnecessary services blocked.
Browser installations since 2015
Hosts of ads and trackers identified
Unnecessary services identified
Frequently Asked Questions
People often have questions about ad blockers, how they work and whether they are safe. This quick overview gives you clear answers without the noise.
Yes, UltraBlock is completely safe to use. It operates entirely within your browser without requiring access to your personal information. Unlike some extensions that collect browsing data, UltraBlock works locally on your device and never transmits your activity to external servers. Your privacy remains protected while you browse with complete peace of mind.
Yes, using adblockers is completely legal in all states and countries. Courts have consistently ruled that internet users have the right to control what content displays in their browsers. UltraBlock simply exercises this right by giving you full control over ads, trackers, and cookies. There are no legal restrictions preventing you from blocking unwanted content while browsing.
Disabling UltraBlock is quick and easy. Simply click the UltraBlock icon in your browser's toolbar, then toggle the switch to turn off blocking for the specific website you're visiting. The page will automatically refresh to load without ad blocking. You can re-enable it anytime by clicking the icon again and turning the protection back on.
To remove UltraBlock, open your browser's extensions or add-ons menu from the settings. Locate UltraBlock in the list of installed extensions, then click the remove or uninstall button. The extension will be completely removed from your browser. If you change your mind later, you can easily reinstall UltraBlock from the Chrome Web Store, Firefox Add-ons, or Microsoft Edge store.
An adblocker like UltraBlock prevents unwanted ads, invisible trackers, and third-party cookies from loading when you visit websites. It identifies and blocks content from advertising networks and tracking services before they can collect your browsing data or slow down page load times. UltraBlock also displays real-time information showing exactly which services were blocked on each website you visit.
Some adblockers do collect data about your browsing habits, but UltraBlock does not track you. All ad detection, blocking, and privacy protection happen entirely within your browser without sending any information to external servers. Your browsing history, the websites you visit, and what you do online stay completely private. UltraBlock is designed from the ground up with privacy as the top priority.
Many websites rely on advertising revenue to pay for content creation and hosting costs. When adblockers prevent ads from displaying, websites lose potential income. Some sites detect adblockers and request that you disable them to support their work. With UltraBlock, you can easily turn off blocking for specific websites you want to support, then re-enable it when visiting other sites.
Yes, adblockers significantly improve website loading speeds. UltraBlock prevents resource-heavy advertisements, tracking scripts, and third-party content from loading, which can reduce page load times by more than 50%. Fewer requests to advertising servers mean pages display faster, use less bandwidth, and consume less battery power on mobile devices. Your browsing experience becomes noticeably smoother and more responsive.
Not all free adblockers are safe. Some collect and sell your browsing data, while others allow certain advertisers to bypass blocking in exchange for payment. UltraBlock is different—it's completely free, transparent, and focused solely on protecting your privacy. There's no hidden monetization, data collection, or acceptable ads program. UltraBlock blocks everything without compromise and never tracks your online activity.
You'll notice several signs that UltraBlock is working effectively. Websites will load faster with significantly fewer or no advertisements visible. Pages will appear cleaner without banner ads, pop-ups, or video ads. Click the UltraBlock icon in your browser toolbar to see a detailed list of all trackers, ads, and cookies that were blocked on the current website, confirming active protection.