[GH-ISSUE #589] Password recovery for Firefox fails. nssModule & pProf are 0 #346

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opened 2026-02-27 15:49:58 +03:00 by kerem · 1 comment

kerem commented

2026-02-27 15:49:58 +03:00

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Originally created by @YvonFortier on GitHub (Mar 11, 2017).
Original GitHub issue: https://github.com/quasar/Quasar/issues/589

Hello.

I had an issue reading Firefox's program files & profile dirs, so I hard coded that (when I fix it programatically, I'll push it if you want. It's changed and the program is looking in a wrong place).

Right now, the problem is here:

`
private static void InitializeDelegates(DirectoryInfo firefoxProfilePath, DirectoryInfo firefoxPath)
{
//Return if under firefox 35 (35+ supported)
//Firefox changes their DLL heirarchy/code with different releases
//So we need to avoid trying to load a DLL in the wrong order
//To prevent pop up saying it could not load the DLL
if (new Version(FileVersionInfo.GetVersionInfo(firefoxPath.FullName + "\firefox.exe").FileVersion).Major < new Version("35.0.0").Major)
return;

        NativeMethods.LoadLibrary(firefoxPath.FullName + "\\msvcr100.dll");
        NativeMethods.LoadLibrary(firefoxPath.FullName + "\\msvcp100.dll");
        NativeMethods.LoadLibrary(firefoxPath.FullName + "\\msvcr120.dll");
        NativeMethods.LoadLibrary(firefoxPath.FullName + "\\msvcp120.dll");
        NativeMethods.LoadLibrary(firefoxPath.FullName + "\\mozglue.dll");
        nssModule = NativeMethods.LoadLibrary(firefoxPath.FullName + "\\nss3.dll");
        IntPtr pProc = NativeMethods.GetProcAddress(nssModule, "NSS_Init");
        NSS_InitPtr NSS_Init = (NSS_InitPtr)Marshal.GetDelegateForFunctionPointer(pProc, typeof(NSS_InitPtr));
        NSS_Init(firefoxProfilePath.FullName);
        long keySlot = PK11_GetInternalKeySlot();
        PK11_Authenticate(keySlot, true, 0);
    }`

nssModule & pProc show this:
screenshot

After that line, I get the following exception:
screenshot2

Any help would be greatly appreciated.

Originally created by @YvonFortier on GitHub (Mar 11, 2017). Original GitHub issue: https://github.com/quasar/Quasar/issues/589 Hello. I had an issue reading Firefox's program files & profile dirs, so I hard coded that (when I fix it programatically, I'll push it if you want. It's changed and the program is looking in a wrong place). Right now, the problem is here: ` private static void InitializeDelegates(DirectoryInfo firefoxProfilePath, DirectoryInfo firefoxPath) { //Return if under firefox 35 (35+ supported) //Firefox changes their DLL heirarchy/code with different releases //So we need to avoid trying to load a DLL in the wrong order //To prevent pop up saying it could not load the DLL if (new Version(FileVersionInfo.GetVersionInfo(firefoxPath.FullName + "\\firefox.exe").FileVersion).Major < new Version("35.0.0").Major) return; NativeMethods.LoadLibrary(firefoxPath.FullName + "\\msvcr100.dll"); NativeMethods.LoadLibrary(firefoxPath.FullName + "\\msvcp100.dll"); NativeMethods.LoadLibrary(firefoxPath.FullName + "\\msvcr120.dll"); NativeMethods.LoadLibrary(firefoxPath.FullName + "\\msvcp120.dll"); NativeMethods.LoadLibrary(firefoxPath.FullName + "\\mozglue.dll"); nssModule = NativeMethods.LoadLibrary(firefoxPath.FullName + "\\nss3.dll"); IntPtr pProc = NativeMethods.GetProcAddress(nssModule, "NSS_Init"); NSS_InitPtr NSS_Init = (NSS_InitPtr)Marshal.GetDelegateForFunctionPointer(pProc, typeof(NSS_InitPtr)); NSS_Init(firefoxProfilePath.FullName); long keySlot = PK11_GetInternalKeySlot(); PK11_Authenticate(keySlot, true, 0); }` nssModule & pProc show this: <img width="933" alt="screenshot" src="https://cloud.githubusercontent.com/assets/19503214/23824393/2ae053dc-0676-11e7-9b29-6d4a1d5dcfa7.png"> After that line, I get the following exception: <img width="933" alt="screenshot2" src="https://cloud.githubusercontent.com/assets/19503214/23824405/590c33a2-0676-11e7-865b-bb1b61904614.png"> Any help would be greatly appreciated.

kerem

2026-02-27 15:49:58 +03:00

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kerem commented

2026-02-27 15:49:59 +03:00

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@MaxXor commented on GitHub (Jun 8, 2020):

Password recovery for Firefox works only if the 64 bit version of Firefox is installed on Windows 64 bit.

@MaxXor commented on GitHub (Jun 8, 2020): Password recovery for Firefox works only if the 64 bit version of Firefox is installed on Windows 64 bit.

kerem referenced this issue

2026-02-27 15:53:10 +03:00

[PR #354] [MERGED] Fix for #346 #1117