Home » Firefox improves the blocking of ad trackers in private browsing

Firefox improves the blocking of ad trackers in private browsing

Firefox now blocks Google Analytics tracking in private browsing

Image: Richard Horvath / TechToSee

Mozilla says Firefox users will be better protected against ad trackers (like Google Analytics scripts) when browsing the Internet in incognito mode and using Strict Tracking Protection.

In fact, starting with Firefox 93 version released yesterday, the browser has improved web compatibility for privacy protection via SmartBlock 3.0.

The SmartBlock mechanism, introduced by Mozilla with the release of Firefox 87 in March, ensures that Tracking Protection and Strict Mode don’t break websites when blocking tracking scripts.

It does this by loading local and privacy-preserving alternatives to blocked resources with behavior similar enough to the original to ensure that the site still functions properly.

“The third iteration of SmartBlock brings significantly improved support to replace popular Google Analytics scripts and additional support for popular services such as Optimizely, Criteo, Amazon TAM, and various Google ad scripts,” Mozilla said.

“As usual, these replacements come with Firefox and cannot follow you in any way.

Starting with this release, Firefox also comes with improved referrer tracking protection which prevents sites from sharing sensitive user data through HTTP referrers by removing the HTTP referrer for cross-site requests, regardless of site settings. .

How Firefox Private Browsing Protects Your Privacy

Mozilla also announced in July that SmartBlock cross-site tracking blocking technology had been updated to block Facebook tracking scripts while still allowing connections to work.

In June, it also enabled Full Cookie Protection by default in incognito windows starting with Firefox 89, automatically protecting users from cross-site tracking.

When you browse the Internet in private mode, Firefox is designed to protect your privacy with several privacy technologies, all of which are enabled by default:

To switch to private browsing, you must open the application menu by clicking on the (☰) button in the upper right corner and choose “New private window”.

You can also activate private browsing mode using the keyboard shortcut Ctrl + Shift + P (or Cmd + Shift + P on macOS).

In related news, Firefox 93 now also blocks downloads over HTTP to protect against potentially dangerous or malicious downloads.

Additionally, when available system memory is extremely low on Windows devices, Firefox will automatically unload browsing tabs based on their last access time, memory usage, and other attributes to reduce crashes. insufficient memory.

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