Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Funkcionalnosć tutoho sydła so přez wothladowanske dźěła wobmjezuje, kotrež maja waše dožiwjenje polěpšić. Jeli nastawk waš problem njerozrisuje a chceće prašenje stajić, wobroćće so na naše zhromodźenstwo pomocy, kotrež na to čaka, wam na @FirefoxSupport na Twitter a /r/firefox na Reddit pomhać.

Pomoc přepytać

Hladajće so wobšudstwa pomocy. Njenamołwimy was ženje, telefonowe čisło zawołać, SMS pósłać abo wosobinske informacije přeradźić. Prošu zdźělće podhladnu aktiwitu z pomocu nastajenja „Znjewužiwanje zdźělić“.

Dalše informacije

Error message recieved when applying TLS/SSL

  • 5 wotmołwy
  • 2 matej tutón problem
  • 1 napohlad
  • Poslednja wotmołwa wot cor-el

more options

When I am trying to update my Mozilla.cfg and add preferences I receive the attached error message when I apply the following settings:

LockPref("security.enable_tls", true);

LockPref("security.enable_ssl2", false)

LockPref("security.enable_ssl3", false);

lockPref("security.tls.version.min", "2");

lockPref("security.tls.version.max", "3");


in addition to the issues with adding TLS, SSL, and TSL min/max version, I also received the same error message when I try to apply the following lines:

lockPref("browser.history_expire_days_min", "40");

lockPref("browser.history_expire_days_min", "40");


Running the most current version of Firefox (at the time I created this post) 61.0.1


Error message in case the attachment doesn't work:

Netscape.cfg/AutoConfig failed. Please contact your system administrator.

Error: defaultPref failed: [Exception... "Component returned failure code: 0x8000ffff (NS_ERROR_UNEXPECTED) [nsIPrefBranch.setStringPref]"  nsresult: "0x8000ffff (NS_ERROR_UNEXPECTED)"  location: "JS frame :: prefcalls.js :: defaultPref :: line 53"  data: no]
When I am trying to update my Mozilla.cfg and add preferences I receive the attached error message when I apply the following settings: LockPref("security.enable_tls", true); LockPref("security.enable_ssl2", false) LockPref("security.enable_ssl3", false); lockPref("security.tls.version.min", "2"); lockPref("security.tls.version.max", "3"); in addition to the issues with adding TLS, SSL, and TSL min/max version, I also received the same error message when I try to apply the following lines: lockPref("browser.history_expire_days_min", "40"); lockPref("browser.history_expire_days_min", "40"); Running the most current version of Firefox (at the time I created this post) 61.0.1 Error message in case the attachment doesn't work: Netscape.cfg/AutoConfig failed. Please contact your system administrator. Error: defaultPref failed: [Exception... "Component returned failure code: 0x8000ffff (NS_ERROR_UNEXPECTED) [nsIPrefBranch.setStringPref]" nsresult: "0x8000ffff (NS_ERROR_UNEXPECTED)" location: "JS frame :: prefcalls.js :: defaultPref :: line 53" data: no]
Připowěsnjene fota wobrazowki

Wot chwest90 změnjeny

Wubrane rozrisanje

hi, don't put quotation marks around integer values. in addition you can leave out the browser.history_expire_days_min preference, it is outdated and won't have any effect...

edit: also it's "lockPref" - you'll have to be careful with capitalization in this file

Tutu wotmołwu w konteksće čitać 👍 1

Wšě wotmołwy (5)

more options

Wubrane rozrisanje

hi, don't put quotation marks around integer values. in addition you can leave out the browser.history_expire_days_min preference, it is outdated and won't have any effect...

edit: also it's "lockPref" - you'll have to be careful with capitalization in this file

Wot philipp změnjeny

more options

Great, thanks Philipp that worked for the min/max version, but what about the "enable_tls", "enable_ssl2", and "enable_ssl3" ?

edit reply: I do have all my lines set to "lockPref" it appears my web browser helped itself to some auto-capitalization.

Wot chwest90 změnjeny

more options

i think those prefs are outdated and won't do anything in modern firefox versions either. you'll already achieve your goal by setting

lockPref("security.tls.version.min", 2);
lockPref("security.tls.version.max", 3);
more options

is there any way to still set it using Mozilla.cfg? I have very specific instructions to apply these settings. If not, I can simply submit for an exception, but I would still like to try make it work.

more options

SSL2 support was removed in Firefox 8.

SSL3 support was removed in Firefox 39.

These prefs are no longer supported since Firefox 23.

lockPref("security.enable_tls", true);
lockPref("security.enable_ssl2", false)
lockPref("security.enable_ssl3", false);

Bug 733642 - Allow the user to enable any version of TLS that libssl supports, maintaining our current defaults [23]

#733642#c1: This patch drops support for the security.enable_tls and security.enable_ssl3 prefs with new prefs security.tls.version.min and security.tls.version.max.