firefox proxy settings via command line

Question

How do I change Firefox Proxy settings via command line on windows xp/2k?

Thanks

Answer 1

Just wanted to post the code in a cleaner format... originally posted by sam3344920

cd /D "%APPDATA%\Mozilla\Firefox\Profiles"
cd *.default
set ffile=%cd%
echo user_pref("network.proxy.http", "148.233.229.235 ");>>"%ffile%\prefs.js"
echo user_pref("network.proxy.http_port", 3128);>>"%ffile%\prefs.js"
echo user_pref("network.proxy.type", 1);>>"%ffile%\prefs.js"
set ffile=
cd %windir%

---

If someone wants to remove the proxy settings, here is some code that will do that for you.

cd /D "%APPDATA%\Mozilla\Firefox\Profiles"
cd *.default
set ffile=%cd%
type "%ffile%\prefs.js" | findstr /v "user_pref("network.proxy.type", 1);" >"%ffile%\prefs_.js"
rename "%ffile%\prefs.js" "prefs__.js"
rename "%ffile%\prefs_.js" "prefs.js"
del "%ffile%\prefs__.js"
set ffile=
cd %windir%

Explaination: The code goes and finds the perfs.js file. Then looks within it to find the line "user_pref("network.proxy.type", 1);". If it finds it, it deletes the file with the /v parameter. The reason I added the rename and delete lines is because I couldn't find a way to overwrite the file once I had removed the proxy line. I'm sure there is a more efficient/safer way of doing this...