Tor Browser 10.5a7 releases: updates Firefox for desktops to 78.6.1esr

Tor Browser 10.5a7 releases: updates Firefox for desktops to 78.6.1esr

Why do you use Tor?

Protect their privacy from unscrupulous marketers and identity thieves.

Internet Service Providers (ISPs) sell your Internet browsing records to marketers or anyone else willing to pay for it. ISPs typically say that they anonymize the data by not providing personally identifiable information, but this has proven incorrect. A full record of every site you visit, the text of every search you perform, and potentially userid and even password information can still be part of this data. In addition to your ISP, the websites (and search engines) you visit have their own logs, containing the same or more information.

Protect their communications from irresponsible corporations.

All over the Internet, Tor is being recommended to people newly concerned about their privacy in the face of increasing breaches and betrayals of private data. From lost backup tapes to giving away the data to researchers, your data is often not well protected by those you are supposed to trust to keep it safe.

Protect their children online.

You’ve told your kids they shouldn’t share personally identifying information online, but they may be sharing their location simply by not concealing their IP address. Increasingly, IP addresses can be literally mapped to a city or even street location and can reveal other information about how you are connecting to the Internet. In the United States, the government is pushing to make this mapping increasingly precise.

Research sensitive topics

There’s a wealth of information available online. But perhaps in your country, access to information on AIDS, birth control, Tibetan culture, or world religions is behind a national firewall.

Skirt surveillance

Even harmless web browsing can sometimes raise red flags for suspicious observers. Using Tor protects your privacy by making it extremely difficult for an observer to correlate the sites you visit with your physical-world identity.

Circumvent censorship

If you live in a country that has ever blocked Facebook or Youtube, you might need to use Tor to get basic internet functionality.

Tor Browser 10.5a7 has been released.


This release updates Firefox to 78.6.1esr for desktop and Firefox for Android to 85.0.0-beta.7. Additionally, we update Tor to This versions also fixes a crash seen by macOS users on the new M1 processor.

Note: We are investigating a build reproducibility issue for the Android packages. We identified where the packages from different builders differ and we are working on a fix for the next version.

Note: Tor Browser 10.5 does not support CentOS 6.

The full changelog since Tor Browser 10.5a6 is:

  • All Platforms
    • Update NoScript to 11.1.8
    • Bug 40204: Update Tor to
    • Translations update
  • Windows + OS X + Linux
    • Update Firefox to 78.6.1esr
    • Bug 40287: Switch DDG search from POST to GET
    • Bug 40297: Rebase 10.5 patches onto 78.6.1esr
  • Android
  • OS X
    • Bug 40262: Browser tabs crashing on the new Macbooks with the M1 chip
  • Build System
    • All Platforms
      • Bug 40194: Remove osname part in cbindgen filename
    • Android
      • Bug 40162: Build Fenix instrumented tests apk
      • Bug 40190: Update toolchain for Fenix 85
      • Bug 40191: Update Fenix and dependencies to 85.0.0-beta1
      • Bug 40193: Build all mobile Rust targets in a single step
      • Bug 40195: is not usable anymore