hi, within mozilla.cfg you can use either lockPref(); defaultPref(); or pref(); (case sensitive!) and there is a semicolon missing at the end... http://kb.mozillazine.org/Locking_preferences

apologies i missed that when copying:

i had tried lockPrefs and tested again when the same result (ignoring)

this is the full code being used now:

// lockPref("security.ssl3.dhe_rsa_aes_128_sha", False); lockPref("security.ssl3.dhe_rsa_aes_256_sha", False); lockPref("security.mixed_content.block_display_content", true);

try "false" (uncapitalised) as well & maybe try different encodings of the .cfg file as well (ansi/utf-8)...

Note that it is usually best to make the changes on the about:config page and copy the lines from prefs.js to mozilla.cfg and modify the function call to prevent issues with a pref name and pref value. That way you can also see if a pref is still supported in the current release (a reset will make unsupported or hidden prefs disappear).

Hi All,

Thanks for replies.

I have tried both recommendations.

i have shortened the code for testing

the CFG file now contains:

//

lockPref("security.ssl3.dhe_rsa_aes_128_sha", false);

this was copied from prefs.js and amended with lockPref

config file is still being ignored

i have also tried saving the config in every encode notepad has

ANSI, Unicode, Unicode big endian, and UTF-8

Firefox is still loading correctly as normal

Does Firefox find and process the mozilla.cfg file?

You can check that by temporarily renaming the mozilla.cfg file. If Firefox doesn't find the mozilla.cfg file then you wouldn't be able to start Firefox.

A local-settings.js file needs to be placed in the "defaults/pref" folder where also the channel-prefs.js file is located to specify using mozilla.cfg.

pref("general.config.filename", "mozilla.cfg");
pref("general.config.obscure_value", 0);

Hi All,

Thanks for your help got it working

it was this:

A local-settings.js file needs to be placed in the "defaults/pref" folder where also the channel-prefs.js file is located to specify using mozilla.cfg.

pref("general.config.filename", "mozilla.cfg"); pref("general.config.obscure_value", 0);

i removed the one i had and redid it like this and started working!

on a side note - i am looking to add cer

please ignore the last line of my reply