1335279 - -silent -setDefaultBrowser doesn't set Firefox as default browser - Windows 7

Status: UNCONFIRMED

(Firefox :: Shell Integration, defect, P5)

Description

[Trent Thomas]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.76 Safari/537.36

Steps to reproduce:

Ran the following batch file:

@Echo on
Setlocal EnableDelayedExpansion
if exist "C:\Program Files (x86)\Mozilla Firefox\" (
taskkill /f /im firefox.exe
cd "C:\Program Files (x86)\Mozilla Firefox"
firefox.exe -silent -setDefaultBrowser
) else (
Echo no
)
pause


Actual results:

Script runs without error, and when I open Firefox, the prompt for setting Firefox as my default browser is no longer there; however, after checking my settings, Firefox is still not my default browser.


Expected results:

Firefox should be set as the default browser.

Comment 1

[Trent Thomas]

Also occurs when running the following command in Start -> Run: -silent -setDefaultBrowser

Comment 2

[Masatoshi Kimura [:emk]]

> Windows NT 10.0

It contradicts with the summary. Are you really using Windows 7?

Comment 3

[Trent Thomas]

Yes, I am testing my scripts in a Windows 7 virtual machine.

Comment 4

[Trent Thomas]

Wanted to add that now the prompt for setting Firefox as default browser is appearing again.

Interestingly enough, my registry indicates that Firefox is the default browser, when Firefox itself seems to think it isn't. Internet Explorer is claiming to be the default browser inside IE's settings.

HKEY_CLASSES_ROOT\http\shell\open\command contains
HKEY_CLASSES_ROOT\http\shell\open\ddeexec\Application
HKEY_CLASSES_ROOT\http\DefaultIcon

All of these registry keys indicate Firefox to be the default browser, but it isn't.