Firefox file picker

[ourslfs]

Windows 10 ltsc 21h2(19044.2604), latest explorerpatcher, latest firefox, disabled use immersive context menus when displaying windows 10 context menus feature doesn't affect firefox file picker(as well as such features as hide search bar and and shrink address bar). Everything else works as intended. Is that something on the firefox side, like them shipping it with some changes to file picker or explorerpatcher not affecting it?

[topia]

https://bugzilla.mozilla.org/show_bug.cgi?id=1798707

[ourslfs]

well... that's kind of unfortunate. thanks for the info.

[Anixx]

You can use Windhawk mods "Disable Immersive Context Menus" and/or "Disable Navigation Bar" from Windhawk store as a workaround.

[ourslfs]

wait what? there are standalone mods available? cool, thanks for the info!

[Anixx]

Additionally, if you use Windows Classic theme, you can utilize the following Windhawk mod to force Windows XP-style open/save dialogs in all programs:

// ==WindhawkMod==
// @id              classic-file-picker
// @name            Classic File Picker
// @description     Redirect the Windows Vista+ file picker to the Windows XP one
// @version         0.2
// @include         *
// @exclude         ApplicationFrameHost.exe
// @exclude         msedge.exe
// @exclude         chrome.exe
// @compilerOptions -lole32 -lcomdlg32 -luxtheme
// ==/WindhawkMod==

#include <uxtheme.h>

template<class S>
CLSID CreateGUID(const S& hexString)
{
    CLSID clsid;
    CLSIDFromString(hexString, &clsid);

    return clsid;
}

const CLSID CLSID_FileOpenDialog = CreateGUID(L"{DC1C5A9C-E88A-4dde-A5A1-60F82A20AEF7}");
const CLSID CLSID_FileOpenDialogLegacy = CreateGUID(L"{725F645B-EAED-4fc5-B1C5-D9AD0ACCBA5E}");
const CLSID CLSID_FileSaveDialog = CreateGUID(L"{c0b4e2f3-ba21-4773-8dba-335ec946eb8b}");
const CLSID CLSID_FileSaveDialogLegacy = CreateGUID(L"{AF02484C-A0A9-4669-9051-058AB12B9195}");

using CoCreateInstance_t = decltype(&CoCreateInstance);
CoCreateInstance_t CoCreateInstance_Original;
HRESULT WINAPI CoCreateInstance_Hook(REFCLSID rclsid, LPUNKNOWN pUnkOuter, DWORD dwClsContext, REFIID riid, LPVOID *ppv) {
    if (rclsid == CLSID_FileOpenDialog) {
        return CoCreateInstance_Original(CLSID_FileOpenDialogLegacy, pUnkOuter, dwClsContext, riid, ppv);
    } else if (rclsid == CLSID_FileSaveDialog) {
        return CoCreateInstance_Original(CLSID_FileSaveDialogLegacy, pUnkOuter, dwClsContext, riid, ppv);
    }

    return CoCreateInstance_Original(rclsid, pUnkOuter, dwClsContext, riid, ppv);
}

BOOL Wh_ModInit() {
    SetThemeAppProperties(STAP_ALLOW_NONCLIENT);
    Wh_SetFunctionHook((void*)CoCreateInstance, (void*)CoCreateInstance_Hook,
                       (void**)&CoCreateInstance_Original);
    return TRUE;
}