Mozilla Firefox is the Mozilla Foundation’s web browser and can be upgraded to a secure and privacy friendly browser through many community-developed add-ons and customizations. It is free of charge and is available on the download page for Windows and MacOS.
Quick configuration for a privacy-friendly Firefox
If you don’t want to get into the details, you can use this quick configuration guide to configure Firefox in a privacy friendly way. You can skip the section “traceless surfing” with detailed explanations and read on in the next chapter. By the way, the new Firefox Quantum is the most privacy friendly browser I have tested so far. We recommend the following add-ons or configuration files:
The CookieController add-on simplifies the site-specific settings for cookies and DOM storage (super cookies) as well as access to stored cookies.
uBlock Origin is an efficient and easy to install advertising and tracking blocker for Firefox. To install it, just click on the download button on the website. Filter list management -> Filter list management
The CanvasBlocker add-on blocks the reading of HTML5 canvas elements to prevent fingerprinting of the browser.
No Resource URI Leak
The add-on No Resource URI Leak blocks access to recource: // and chrome: // addresses for websites and prevents the reading of information for fingerprinting.
The DNSSEC/TLSA validator checks the SSL certificates of a Web page for fingerprints in the DANE/TLSA record in DNS. After installing the add-on you should test the DNS server settings ->.
In addition, other settings in the configuration must be set to privacy-friendly, as described in the summary. To avoid setting the values individually, you can download the file user. js and save it in your browser profile. To simplify the installation of privacy-friendly search engines, we have prepared some search plugins. If you are on this website, you can type a few letters in the search field in the top right corner of the Firefox Toolbar and add the desired search engines with one click in the pop-up menu.
Mozilla Firefox with Linux
The Extended Support Releases (ESR versions) of Firefox are available on this download page. In contrast to the 6-week updates of Firefox, the ISR versions will be updated to approx. a year, no new features are added, which has a positive effect on the stability. However, there are also some recent improvements missing.
Most Linux distributions contain Mozilla Firefox in their repositories. You can install the browser with the package manager, for Ubuntu and derivatives e. g. with:
Debian GNU/Linux contains the Firefox-ESR. The browser is installed from the repositories with the following command:
“apparmor” is a security framework for Linux. As a mandatory access control system, it controls individual applications and can finely restrict the rights of applications with profiles. If an application (e. g. Firefox) is compromised, the attacker can do little damage to the system if the application is running under the control of “apparmor”.
Some distributions like Ubuntu bring an apparmor profile for Firefox with them. The package “apparmor-profiles” is to be installed and the rules for Firefox enforced:
> sudo aa-enforce usr. bin. firefox
With “sudo aa-status” you can check if Firefox runs in enforced mode under control of “apparmor” after the browser has been started.