How do I secure the Firefox browser

Eight surfing comfort tips for Firefox and Chrome

6. Make surfing with Firefox safe in five steps

How secure the Firefox browser is depends largely on how you set it up.

Solution: With the following steps you can optimize the protection of the browser.

Check standard settings: Firefox offers a number of default security settings. Actually, these should be activated automatically after installing the browser. However, a routine check to make sure that they are still switched on makes perfect sense. To do this, check in the open browser under “Firefox> Settings> Security” whether the first three options are checked. These are “Warn me when websites try to install add-ons”, “Block a website if it has been reported as attacking” and “Block a website if it has been reported as an attempted fraud”.

Activate master password: The master password protects the log-in data stored in Firefox. Admittedly, it's even more secure if you don't save any passwords in Firefox at all. However, if you do, you should definitely activate the master password. This can also be done via “Firefox> Settings> Security”.

Check sync settings: With Firefox, bookmarks, add-ons, passwords, settings, history and open tabs can be synchronized with the browsers on other PCs and devices. This is extremely useful for users with multiple devices. The data is transmitted in encrypted form. If you do not want to send your passwords over the Internet, you should exclude them from the sync procedure. You control everything that is transferred under "Firefox> Settings> Sync".

Update extensions: Firefox has been updating itself automatically for several version numbers. However, this does not apply to all browser extensions. Outdated add-ons can, however, pose a security risk. You should therefore check the extensions on the website There you will find the button "Check for updates now". If an add-on is out of date, the check usually provides a direct link to the download page for the update.

Install security add-ons: Recommended and free of charge is Web of Trust, which warns you of dangerous websites. The add-on knows more sites than the function integrated in Firefox. With the Noscript extension, you can effectively prevent scripts from being run on websites. Script execution can be activated individually on secure sites. The HTTPS Everywhere extension chooses an encrypted connection to a web service where possible.