قالب وردپرس درنا توس
Home / Tips and Tricks / Enable HTTPS mode in Mozilla Firefox

Enable HTTPS mode in Mozilla Firefox



Firefox logo on a purple background

Mozilla Firefox’s HTTPS-Only mode provides additional privacy and security online. When enabled, Firefox will do its best to load encrypted HTTPS websites only. If only HTTP is available, Firefox will not load the unencrypted website without prompting you.

Why is HTTPS important?

The secure protocol HTTPS is the basic method for maintaining privacy and security on the Internet. It establishes an encrypted connection between your browser and the web server that prevents third parties from intercepting or manipulating the data between you and the site you are visiting.

Unfortunately, not all sites support HTTPS, and some sites can fall back to plain HTTP versions of a site if you visit them via an HTTP link (such as http://www.example.com instead of https://www.example.com̵

1; note the missing “s” in the address).

Starting with Mozilla Firefox version 83, which was released on November 16, 2020, you can enable HTTPS mode. Firefox will automatically try to load the HTTPS version of a website, even if you visit the site via a link to an unencrypted HTTP address. If none is available, you must give explicit permission before Firefox loads an HTTP page. Here’s how to enable this option.

RELATED: What is HTTPS and why should I care?

Enable HTTPS mode in Firefox

First, open Firefox and click the hamburger button (three horizontal lines) in a Firefox window. From the menu that appears, select “Options” on Windows and Linux or “Preferences” on a Mac.

Tip: If you are not using Firefox version 83 or higher, you must update Firefox to use the HTTPS Only feature. To manually check for updates, click the Firefox menu and select Help> About Firefox. Then click on the “Update Firefox” button.

RELATED: How to update Mozilla Firefox

In Firefox, click the hamburger menu and select

In the “Options” or “Preferences” tab, click “Privacy and Security” in the sidebar menu.

In Firefox Options, click

On the ‘Browser Privacy’ preferences page, scroll down and find the ‘HTTPS mode only’ section. Click the radio button next to “Enable HTTPS mode in all windows” to select it. (You also have the choice to enable only HTTPS mode in private windows, so select that if you prefer.)

In Firefox, select Privacy options

After that, close the Options tab and the change will take effect immediately. If you visit a website through an unencrypted HTTP link that supports HTTPS, you will be automatically redirected to the encrypted HTTPS version of the site.

What if a site doesn’t support HTTPS?

If you visit a site with HTTPS Only mode enabled and the site does not support HTTPS, you will see an error page similar to this one.

If HTTPS mode is enabled in Firefox, you will see this error message when you visit a non-HTTPS website.

If you visit a site that is only partially HTTPS secured, that is, it pulls unencrypted elements to the secure page, it may not display correctly with HTTPS only mode enabled.

In either case, Mozilla has provided a quick way to temporarily disable HTTPS mode. To do this, click the lock icon next to the website address in the URL bar.

In Firefox, click the lock icon next to the website address.

In the menu that appears, click the drop-down menu under “HTTPS Only Mode” and choose “Temporarily Off” to temporarily disable HTTPS Only mode.

Select after clicking the lock icon in Firefox

Alternatively, if you only want to permanently disable HTTPS mode for this particular site, select “Off” from the list. Firefox remembers these settings separately for each website.

After that, you can see the site as usual. If the site ever upgrades to fully support HTTPS, you can re-enable HTTPS-Only Mode for the site using the same menu option hidden under the web address lock icon. Have fun browsing!


Web browsers such as Mozilla Firefox and Google Chrome encourage websites to move from HTTP to more secure HTTPS connections. Firefox’s HTTPS-only mode will likely become the default option one day, improving privacy and online security, and further encouraging website owners to upgrade to HTTPS.




Source link