How Do I Know if Firefox Is Installed on Ubuntu?

To check whether Mozilla Firefox is successfully installed on your Ubuntu PC, simply type firefox in the terminal and hit Enter. A new Firefox browser window will pop up. Another way is to use whereis to check the location of the Firefox binary: <pre> <code class="hljs console">whereis firefox</code> </pre> The output will include a path to the Mozilla Firefox binary. If it doesn't, consider reinstalling Mozilla Firefox.

Why Can't I Open Mozilla Firefox in Ubuntu?

A broken installation can cause Firefox to behave unexpectedly. To fix this issue, first, try reinstalling Mozilla Firefox on your Ubuntu PC and check if the issue persists. If you've installed Firefox from the Snap Store, restart the Snap daemon to see if it fixes the problem: <pre> <code class="hljs console">sudo systemctl restart snapd.service</code> </pre>

How Do I Install Older Versions of Firefox on Ubuntu?

To install older Mozilla Firefox versions on Ubuntu, head over to the Ubuntuzilla SourceForge web page and download the DEB file corresponding to the version you want to install. Download: <a href="https://sourceforge.net/projects/ubuntuzilla/files/mozilla/apt/pool/main/f/firefox-mozilla-build/" rel="noopener noreferrer" target="_blank">Mozilla Firefox Ubuntuzilla</a> Then, launch the terminal, navigate to the directory where you've downloaded the DEB package, and run: <pre> <code class="hljs console">sudo dpkg -i firefox-mozilla-build-*.deb</code> </pre> Make sure to include the actual file name in the command.

How to Install Mozilla Firefox on Ubuntu: 5 Ways

MakeUseOf

By Ummara Mushtaq

Updated Sep 3, 2023

Want a better browsing experience on your Linux PC? Here are five ways to install Mozilla Firefox on Ubuntu.

Firefox is a free and open-source web browser from Mozilla. It is one of the most popular and preferred web browsers globally because of its speed, customization, and security features. It is available for Linux, Windows, and macOS.

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