New Release: Tor Browser 8.5.5

Tor Browser 8.5.5 is now available from the Tor Browser Download page and also from our distribution directory.

This release features important security updates to Firefox.

This release is updating Firefox to 60.9.0esr, Tor to, and NoScript to 11.0.3. This release also includes various bug fixes. On the Windows side, we should now have support for accessibility tools. On the Android side, we added support for arm64-v8a devices.

This is expected to be the last release in the 8.5 series: on October 22 we will switch to the 9.0 series, based on Firefox 68ESR.

Note 1: Due to a temporary issue with our update infrastructure, we did not enable automatic updates for Windows, Linux and macOS users yet. We hope to be able to fix this issue soon. Update: this issue is now fixed, updates are enabled.

Note 2: Due to some issue with Google Play's new requirement for 64bit versions, we have not yet been able to publish the Android x86 and x86_64 versions on Google Play. We hope to be able to fix this in the next days. In the meantime the x86 version can be downloaded from our website.

Note 3: There is an issue with the aarch64 version on Android 9 causing a crash on every launch. We are working on a fix for this issue.

The full changelog since Tor Browser 8.5.4 is:

  • All platforms
    • Update Firefox to 60.9.0esr
    • Update Torbutton to 2.1.13
      • Bug 31520: Remove monthly giving banner from Tor Browser
      • Bug 31140: Do not enable IonMonkey on aarch64
      • Translations update
    • Update NoScript to 11.0.3
      • Bug 26847: NoScript pops up a full-site window for XSS warning
      • Bug 31287: NoScript leaks browser locale
    • Bug 31357: Retire Tom's default obfs4 bridge
  • Windows + OS X + Linux
    • Update Tor to
  • Windows
    • Bug 31547: Back out patch for Mozilla's bug 1574980
    • Bug 27503: Provide full support for accessibility tools
    • Bug 30575: Don't allow enterprise policies in Tor Browser
    • Bug 31141: Fix typo in font.system.whitelist
  • Android
  • Build System

September 08, 2019


minor "bug" is:
about:tor tab loads as an additional tab, at every tor browser start up.

have options set so when tor browser starts up, it loads tabs that were open when tor browser was previously shut down.
version 8.5.5 on Windows 7


September 08, 2019


Hi, I can no longer modify user agent on this new tor browser. When I click on useragent.override theres only "true/false" options. Is there any way I can modify it in this new browser?


September 08, 2019


Having a strange problem with 8.5.5 running under Debian 10 with MATE desktop environment running on an HP PC with 1920x1080 display: the window is incorrectly placed, title bar is missing, and the drop down menus don't work.

This is likely related to multiple problems with pretty much everything in Debian 10, which clearly was released too early, and which appears to be fairly useless.

Tails 3.16 booted from a DVD works fine on the same computer. I fear this might change when Tails 4.0 comes out because that will be based on Debian 10.


September 08, 2019


Request to blog maintainers:

Please listen to the many users who live in regions with slow internet infrastructure and who have complained that the huge images appear to be slowing down loading of the webpages so much that we have to manually enter links to blog posts we wish to read. Many issues involving Tor are hard to fix but this one is very easy: remove the huge images which are unneeded eye candy and replace them with much smaller versions.


September 09, 2019


TOR browser for Android 10 crashes on every launch. It can't stay afloat.

New update w/ Samsung Galaxy causes crash on every load immediately

After update of tor on Linux Mint i have experienced extremely long time starting up the tor browser (>10 minutes). What coulis be the reason, and how to fix?

Probably unlikely (10 mins is a lot), but it might be because of some add-on while running on higher security levels - could be related to bug #23719
If that is the case try disabling all non-default add-ons or lowering your security level and see if it still takes that long to start up.

Related to

Tor unexpectly exited on startup seen also on Tor Browser 8.5.5

Tor Browser closes control connection and therefore tor exits.

Sep 13 05:36:34.000 [notice] Bootstrapped 90% (ap_handshake_done): Handshake finished with a relay to build circuits
Sep 13 05:36:34.000 [notice] Bootstrapped 95% (circuit_create): Establishing a Tor circuit
Sep 13 05:36:55.000 [notice] New control connection opened from
Sep 13 05:36:55.000 [notice] Owning controller connection has closed -- exiting now.
Sep 13 05:36:55.000 [notice] Catching signal TERM, exiting cleanly.

Hm. Did we ever pinpoint the exact version where this started for you?

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