Hi Onetimeaccount, when you use Clear Recent History to remove cookies, or set Firefox to "Clear history when Firefox closes" then no cookies are preserved. As an alternative, you can set Firefox to expire cookies when you close it -- only accept cookies for the current session -- and make exceptions for the sites allowed to set persistent cookies. Here's where you set that:

Default All Cookies to Session-only

The setting to dump cookies automatically at the end of your regular session is now here:

• Mac: "3-bar" menu button (or Firefox menu) > Preferences
• Windows: "3-bar" menu button (or Tools menu) > Options
• Linux: "3-bar" menu button (or Edit menu) > Preferences
• Any system: type or paste about:preferences into the address bar and press Enter/Return to load it

In the left column, click Privacy & Security, and on the right side, scroll down to the Cookies and Site Data section.

The checkbox for "Delete cookies and site data when Firefox is closed" works as follows:

(A) If the box is NOT checked, then Firefox lets sites specify how long Firefox will retain their cookies. (Like the old "Keep until: they expire")

(B) If the box IS checked, then Firefox shortens the site's preferred expiration time to the end of the current session. (Like the old "Keep until: Firefox is closed") You can let sites store persistent cookies by creating an exception using the Manage Permissions button. Format note, include the protocol, for example:

• https://mozilla.org => Allow
• http://mozillazine.org => Allow

Exceptions are only needed if you want to stay logged in to a site.

Turn off or Adjust the Clear History Feature

Firefox also can delete all cookies -- disregarding exceptions -- using the feature to Clear history when Firefox closes. If you want to keep some cookies, do not use this feature.

To check on this, scroll down to the History section

Select:

"Firefox will: Use custom settings for history"

If you have a check mark for "Clear history when Firefox closes" then either:

• Uncheck this option to preserve your cookies and other history
• Click the Settings button to the right of this line and uncheck the box for Cookies

Can you get it to work the way you want?

Onetimeaccount said

Also is there an option to whitelist a site so the "do not track" message isn't send?

Hmm, maybe?? If you keep the standard setting of only sending a Do Not Track header when Content Blocking (Tracking Protection) is being applied, then you could make an exception to Content Blocking for the site and see whether Firefox stops sending it.

I found on the website of Mozilla that that feature exist but I could find it (see screenshot)

Unfortunately, the image didn't come through. You could attach it to a reply.

Also I changed the language of Firefox to English but it is still the one I got due to my IP.

You can download a full installer in your preferred language from this page: https://www.mozilla.org/firefox/all/

I think running that will update your current installation with the new language, but you might wait for other feedback on that.

I could not find this feature.

Onetimeaccount said

I could not find this feature.

Not all sites have trackers, so you only see that section of the drop-down on sites where trackers are detected. Also, by default, content blocking is not applied to sites in regular windows, only private windows. Here's what I see in a regular window for this site with the default level of content blocking ("Standard"):