What is the Tor Browser?
The Tor software protects you by bouncing your communications around a distributed network of relays run by volunteers all around the world: it prevents somebody watching your Internet connection from learning what sites you visit, it prevents the sites you visit from learning your physical location, and it lets you access sites which are blocked.
The Tor Browser lets you use Tor on Windows, Mac OS X, or Linux without needing to install any software. It can run off a USB flash drive, comes with a pre-configured web browser to protect your anonymity, and is self-contained (portable).
Tor Browser Downloads
To start using Tor Browser, download the file for your preferred language. This file can be saved wherever is convenient, e.g. the Desktop or a USB flash drive.
Stable Tor Browser
See our instructions on how to verify package signatures, which allows you to make sure you've downloaded the file we intended you to get. Also, note that the Firefox ESR in our bundles is modified from the default Firefox ESR
Experimental Tor Browser
Hardened Tor Browser
Mac OS X Instructions
Download the file above, save it somewhere, then click on it. This opens the .dmg file. (On recent versions of OS X, you might get a warning that it's from an "unidentified developer" — you can get around this complaint by control-clicking and selecting "open".) Drag the included file into your Applications folder and you will have a Tor Browser application in your chosen language that you can pin on your Dock.
Linux Instructions
Download the architecture-appropriate file above, save it somewhere, then run one of the following two commands to extract the package archive:
tar -xvJf tor-browser-linux32-5.5.3_LANG.tar.xz
or (for the 64-bit version):
tar -xvJf tor-browser-linux64-5.5.3_LANG.tar.xz
(where LANG is the language listed in the filename).
Once that's done, switch to the Tor browser directory by running:
cd tor-browser_LANG
(where LANG is the language listed in the filename).
To run Tor Browser, click either on the Tor Browser or the Tor Browser Setup icon or execute the start-tor-browser.desktop file in a terminal:
./start-tor-browser.desktop
This will launch Tor Launcher and once that connects to Tor, it will launch Firefox. Do not unpack or run TBB as root.
Windows Instructions
Download the file above, and save it somewhere, then double click on it. (1) Click "Run" then choose the installer's language and click OK (2). Make sure you have at least 80MB of free disk space in the location you select. If you want to leave the bundle on the computer, saving it to the Desktop is a good choice. If you want to move it to a different computer or limit the traces you leave behind, save it to a USB disk.
Click Install (3) Wait until the installer finishes. This may take a few minutes to complete.
Once the installation is complete, click Finish to launch Tor Browser's wizard.
Once you see Tor Browser's wizard click Connect
Alternatively, you can launch Tor Browser by going to the folder Tor Browser which can be found at the location you saved the bundle at (Default: Desktop) and double click on the Start Tor Browser application.
Once Tor is ready, Tor Browser will automatically be opened. Only web pages visited through Tor Browser will be sent via Tor. Other web browsers such as Internet Explorer are not affected.
Once you are finished browsing, close any open Tor Browser
windows by clicking on the 
(6). For privacy reasons, the list
of web pages you visited and any cookies will be deleted.
To use the Tor Browser again, double click on the "Start Tor Browser" application.
Remember that Tor anonymizes the origin of your traffic, and it encrypts everything inside the Tor network, but it can't encrypt your traffic between the Tor network and its final destination. If you are communicating sensitive information, you should use as much care as you would on the normal scary Internet — use HTTPS or other end-to-end encryption and authentication.
Help and support
If you need help please check if the FAQ answers your question and if not you can email the help desk.
Comments and suggestions
The Tor Browser is under development. To discuss improvements and submit comments, please use the tor-talk mailing list.
More information
What is Tor and why do I need it?
To learn more about Tor, visit the Tor Project website.
What is in the Tor Browser?
It contains Tor, a modified Firefox
ESR, Torbutton, TorLauncher,
NoScript, and HTTPS-Everywhere. Read the
design
document, the ChangeLog
for the branch maint-5.5, and the ChangeLog
for the alpha branch.
How can I make my own bundle?
We use Gitian
to ensure that byte-for-byte reproducible packages can be built from our
source repository by anyone. To rebuild the bundle, check out the Tor
Browser builder repository and see the README.build
for instructions. You may also find the Tor
Browser Hacking intro document useful for learning about the build system
and our development processes.
Where else can I get Tor Browser?
In some countries the Tor Project website is blocked or censored and it is not possible to download
Tor directly. The Tor Project also hosts a mirror of Tor Browser Bundle on Github.
The GetTor service can also be used to download Tor Browser when the Project website and mirrors are blocked.
