Open external links in private-window
On Windows, Firefox adds a pre-set command line to the Windows registry under
HKEY_CLASSES_ROOT\FirefoxHTML\shell\open\command HKEY_CLASSES_ROOT\FirefoxURL\shell\open\command
If you change the -url in the command line to -private-window -- from
"C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -osint -url "%1"
to
"C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -osint -private-window "%1"
-- then all external links launch in a private window.
jscher2000 in https://support.mozilla.org/en-US/questions/1119073
This no longer works in FF 69. As soon as I modify "HKEY_CLASSES_ROOT\FirefoxURL-F66A7FFE1BF331E2\shell\open\command", FF is detecting it and changes its status to "NOT your default browser".
I'd appreciate your help.
Modified by Yaron
Chosen solution
@radar81,
Yes, I've found a solution.
Use:
[HKEY_CLASSES_ROOT\FirefoxHTML-F66A7FFE1BF441E2\shell\open\command] @="\"C:\\Program Files\\Mozilla Firefox New\\firefox.exe\" -private-window \"%1\""
[HKEY_CLASSES_ROOT\FirefoxURL-F66A7FFE1BF441E2\shell\open\command] @="\"C:\\Program Files\\Mozilla Firefox New\\firefox.exe\" -private-window \"%1\""
Replace the path and "-F66A7FFE1BF441E2" with your strings.
The status in FF preferences will change to "NOT your default browser" but *it will actually remain the default browser*.
Regards.
Read this answer in context 👍 1All Replies (4)
I am also wanting to do set external links to launch in a private window by default. I also tried the same solution proposed by jscher2000 in https://support.mozilla.org/en-US/questions/1119073 and found that it no longer works. Were you able to find a solution? Thanks!
Chosen Solution
@radar81,
Yes, I've found a solution.
Use:
[HKEY_CLASSES_ROOT\FirefoxHTML-F66A7FFE1BF441E2\shell\open\command] @="\"C:\\Program Files\\Mozilla Firefox New\\firefox.exe\" -private-window \"%1\""
[HKEY_CLASSES_ROOT\FirefoxURL-F66A7FFE1BF441E2\shell\open\command] @="\"C:\\Program Files\\Mozilla Firefox New\\firefox.exe\" -private-window \"%1\""
Replace the path and "-F66A7FFE1BF441E2" with your strings.
The status in FF preferences will change to "NOT your default browser" but *it will actually remain the default browser*.
Regards.
Modified by Yaron
@Yaron It works, thanks so much!
You're welcome.