[[!img lib/apps/tor-browser.png link="no" alt=""]]

[[!img lib/apps/tor-browser.png link="no" alt=""]]

<h1 id="proxy">PThe proxy server is refusing connections</h1>

<h1 id="proxy">The proxy server is refusing connections</h1>

<h1 id="security-level">Security levelconfinement">Security confinement</h1>

<h1 id="confinement">Security confinement</h1>

*Tor Browser* is only allowed to save the downloads and read the files that you
specify in the file chooser of GNOME.

For example, thanks to this confinement, even if an attacker manages to exploit a security vulnerability in *Tor Browser*, they wouldn't be able to access all the content of your Persistent Storage.

<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>In [[Tails 6.14.1|news/version_6.14.1]] (April 2025), we improved the
previous confinement and you can now safely download to and read from any
folder in your <i>Home</i> folder or Persistent Storage.</p>

This confinement relies on 2 security technologies: *[[!debwiki AppArmor]]* and the [XDG Desktop Portals](https://flatpak.github.io/xdg-desktop-portal/) of *Flatpak*.

<div class="tipbug">

<div class="bug">

<p>When opening files from the <i>/usr</i> or <i>/etc</i> folders in Tor
Browser, Tor Browser displays the following error:</p>

<p class="command">Access to the file was denied</p>

<h1 id="https-everywhere">HTTPS encrypSecure connections with HTTPS Everywhere</h1>

<h1 id="https-everywhere">Secure connections with HTTPS</h1>

[[!img doc/anonymous_internet/Tor_Browser/riseup.png link=noclass="screenshot" alt=""]]

[[!img doc/anonymous_internet/Tor_Browser/riseup.png class="screenshot" alt=""]]

To learn more about HTTPS Everywhere, you canand how *Tor Browser* protects you, see:

To learn more about HTTPS and how *Tor Browser* protects you, see:

[Tor FAQ: HTTPS](https://support.torproject.org/https/)

[Tor Browser User Manual: Secure Connections](https://tb-manual.torproject.org/secure-connections/)

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> **Settings**.

To change the security level, select the [[!img security-level.png
link="no" class="symbolic"]] icon on the right of the address bar
and choose **Settings**.

[[!img security-levels.png link="noclass="screenshot" alt=""]]

[[!img security-levels.png class="screenshot" alt=""]]

[[!img circuit-view.png link=noclass="screenshot" alt=""]]

[[!img circuit-view.png class="screenshot" alt=""]]

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.