*[Tor Browser](https://www.torproject.org)* is a web
browser based on [Mozilla Firefox](https://www.firefox.com/) but configured
to protect your privacy.

<p>To prevent Tails from running out of memory and crashing, download
very big files to the <emi>Persistent/Tor Browser</em</i> folder.
All tThe files that you download outside of the Persistent Storage are
stored in memory (RAM), which is more limited.</p>

<p>To prevent Tails from running out of memory and crashing, download
very big files to the <i>Persistent</i> folder.
The files that you download outside of the Persistent Storage are
stored in memory (RAM), which is more limited.</p>

<p>To understand better the behavior of <i>Tor Browser</i>,
for example, regarding JavaScript and cookies, you can
refer to the <a href="https://2019.www.torproject.org/projects/torbrowser/design/">
<i>Tor Browser</i> design document</a>.</p>

STo change the security level:

To change the security level:

To change the security level, click onSelect the [[!img security-level.png
link="no" class="symbolic" link="no"]] icon on the right of the address bar
and choose
<span class="guilabel">Advanced Security Settings&hellip;</span>.
.

Select the [[!img security-level.png link="no" class="symbolic"]] icon on the right of the address bar.

Select a new security level.

Select a new security level.

Click on the padlockSelect the [[!img tor-circuit.png alt="Tor Circuit" class="symbolic"
link="no"]] button in the address bar to show the relays in the Tor circuit
that is used to connect to the website in the current tab, its 3 relays, their countries, and IP addresses.

Select the [[!img tor-circuit.png alt="Tor Circuit" class="symbolic"
link="no"]] button in the address bar to show the relays in the Tor circuit
that is used to connect to the website in the current tab.

You can use
<span class="application"> *[[Onion Circuits|doc/anonymous_internet/tor_status]]</span>
/circuits]]* to get more detailed information about the circuits being used.

You can use *[[Onion Circuits|doc/anonymous_internet/tor/circuits]]* to get more detailed information about the circuits being used.

<h1 id="new-identity"><b>New Identity</b> feature</h1>

The <span class="guilabel">New Identity</span> feature of
<span class="application"i>Tor Browser</spani>:

The New Identity feature of
<i>Tor Browser</i>:

<h1 id="letterboxing">Letterboxing</h1>