[makap78]

Представленный здесь твик не полный, так как анализировался не чистый реестр. Когда Firefox первый раз с момента установки становится браузером по умолчанию, больше пишет.
Полный твик выглядит так:

Код:

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Clients\StartMenuInternet]
@="FIREFOX.EXE"

[HKEY_CURRENT_USER\Software\Classes]

[HKEY_CURRENT_USER\Software\Classes\.htm]
@="FirefoxHTML"
"Content Type"="text/html"

[HKEY_CURRENT_USER\Software\Classes\.html]
@="FirefoxHTML"
"Content Type"="text/html"

[HKEY_CURRENT_USER\Software\Classes\.shtml]
@="FirefoxHTML"

[HKEY_CURRENT_USER\Software\Classes\.webm]
@="FirefoxHTML"

[HKEY_CURRENT_USER\Software\Classes\.xht]
@="FirefoxHTML"

[HKEY_CURRENT_USER\Software\Classes\.xhtml]
@="FirefoxHTML"

[HKEY_CURRENT_USER\Software\Classes\FirefoxHTML]
@="Firefox HTML Document"
"FriendlyTypeName"="Firefox HTML Document"

[HKEY_CURRENT_USER\Software\Classes\FirefoxHTML\DefaultIcon]
@="C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE,1"

[HKEY_CURRENT_USER\Software\Classes\FirefoxHTML\shell]
@="open"

[HKEY_CURRENT_USER\Software\Classes\FirefoxHTML\shell\open]

[HKEY_CURRENT_USER\Software\Classes\FirefoxHTML\shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE\" -requestPending -osint -url \"%1\""

[HKEY_CURRENT_USER\Software\Classes\FirefoxHTML\shell\open\ddeexec]
@="\"%1\",,0,0,,,,"
"NoActivateHandler"=""

[HKEY_CURRENT_USER\Software\Classes\FirefoxHTML\shell\open\ddeexec\Application]
@="Firefox"

[HKEY_CURRENT_USER\Software\Classes\FirefoxHTML\shell\open\ddeexec\Topic]
@="WWW_OpenURL"

[HKEY_CURRENT_USER\Software\Classes\FirefoxURL]
@="Firefox URL"
"FriendlyTypeName"="Firefox URL"
"URL Protocol"=""
"EditFlags"=dword:00000002

[HKEY_CURRENT_USER\Software\Classes\FirefoxURL\DefaultIcon]
@="C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE,1"

[HKEY_CURRENT_USER\Software\Classes\FirefoxURL\shell]
@="open"

[HKEY_CURRENT_USER\Software\Classes\FirefoxURL\shell\open]

[HKEY_CURRENT_USER\Software\Classes\FirefoxURL\shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE\" -requestPending -osint -url \"%1\""

[HKEY_CURRENT_USER\Software\Classes\FirefoxURL\shell\open\ddeexec]
@="\"%1\",,0,0,,,,"
"NoActivateHandler"=""

[HKEY_CURRENT_USER\Software\Classes\FirefoxURL\shell\open\ddeexec\Application]
@="Firefox"

[HKEY_CURRENT_USER\Software\Classes\FirefoxURL\shell\open\ddeexec\Topic]
@="WWW_OpenURL"

[HKEY_CURRENT_USER\Software\Classes\ftp]
"URL Protocol"=""
"EditFlags"=dword:00000002
@="URL:Протокол FTP"
"ShellFolder"="{63da6ec0-2e98-11cf-8d82-444553540000}"

[HKEY_CURRENT_USER\Software\Classes\ftp\DefaultIcon]
@="C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE,1"

[HKEY_CURRENT_USER\Software\Classes\ftp\shell]
@="open"

[HKEY_CURRENT_USER\Software\Classes\ftp\shell\open]

[HKEY_CURRENT_USER\Software\Classes\ftp\shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE\" -requestPending -osint -url \"%1\""

[HKEY_CURRENT_USER\Software\Classes\ftp\shell\open\ddeexec]
@="\"%1\",,0,0,,,,"
"NoActivateHandler"=""

[HKEY_CURRENT_USER\Software\Classes\ftp\shell\open\ddeexec\Application]
@="Firefox"

[HKEY_CURRENT_USER\Software\Classes\ftp\shell\open\ddeexec\Topic]
@="WWW_OpenURL"

[HKEY_CURRENT_USER\Software\Classes\http]
"URL Protocol"=""
"EditFlags"=dword:00000002
@="URL:Протокол HTTP"

[HKEY_CURRENT_USER\Software\Classes\http\DefaultIcon]
@="C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE,1"

[HKEY_CURRENT_USER\Software\Classes\http\shell]
@="open"

[HKEY_CURRENT_USER\Software\Classes\http\shell\open]

[HKEY_CURRENT_USER\Software\Classes\http\shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE\" -requestPending -osint -url \"%1\""

[HKEY_CURRENT_USER\Software\Classes\http\shell\open\ddeexec]
@="\"%1\",,0,0,,,,"
"NoActivateHandler"=""

[HKEY_CURRENT_USER\Software\Classes\http\shell\open\ddeexec\Application]
@="Firefox"

[HKEY_CURRENT_USER\Software\Classes\http\shell\open\ddeexec\Topic]
@="WWW_OpenURL"

[HKEY_CURRENT_USER\Software\Classes\https]
"URL Protocol"=""
"EditFlags"=dword:00000002
@="URL:Протокол HTTPS"

[HKEY_CURRENT_USER\Software\Classes\https\DefaultIcon]
@="C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE,1"

[HKEY_CURRENT_USER\Software\Classes\https\shell]
@="open"

[HKEY_CURRENT_USER\Software\Classes\https\shell\open]

[HKEY_CURRENT_USER\Software\Classes\https\shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE\" -requestPending -osint -url \"%1\""

[HKEY_CURRENT_USER\Software\Classes\https\shell\open\ddeexec]
@="\"%1\",,0,0,,,,"
"NoActivateHandler"=""

[HKEY_CURRENT_USER\Software\Classes\https\shell\open\ddeexec\Application]
@="Firefox"

[HKEY_CURRENT_USER\Software\Classes\https\shell\open\ddeexec\Topic]
@="WWW_OpenURL"

[HKEY_CLASSES_ROOT\http]
@="URL:Протокол HTTP"
"EditFlags"=dword:00000002
"Source Filter"="{E436EBB6-524F-11CE-9F53-0020AF0BA770}"
"URL Protocol"=""

[HKEY_CLASSES_ROOT\http\DefaultIcon]
@="C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE,1"

[HKEY_CLASSES_ROOT\http\shell]
@="open"

[HKEY_CLASSES_ROOT\http\shell\open]

[HKEY_CLASSES_ROOT\http\shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE\" -requestPending -osint -url \"%1\""

[HKEY_CLASSES_ROOT\http\shell\open\ddeexec]
@="\"%1\",,0,0,,,,"
"NoActivateHandler"=""

[HKEY_CLASSES_ROOT\http\shell\open\ddeexec\Application]
@="Firefox"

[HKEY_CLASSES_ROOT\http\shell\open\ddeexec\Topic]
@="WWW_OpenURL"

[HKEY_CLASSES_ROOT\https]
@="URL:Протокол HTTPS"
"EditFlags"=dword:00000002
"Source Filter"="{E436EBB6-524F-11CE-9F53-0020AF0BA770}"
"URL Protocol"=""

[HKEY_CLASSES_ROOT\https\DefaultIcon]
@="C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE,1"

[HKEY_CLASSES_ROOT\https\shell]
@="open"

[HKEY_CLASSES_ROOT\https\shell\open]

[HKEY_CLASSES_ROOT\https\shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE\" -requestPending -osint -url \"%1\""

[HKEY_CLASSES_ROOT\https\shell\open\ddeexec]
@="\"%1\",,0,0,,,,"
"NoActivateHandler"=""

[HKEY_CLASSES_ROOT\https\shell\open\ddeexec\Application]
@="Firefox"

[HKEY_CLASSES_ROOT\https\shell\open\ddeexec\Topic]
@="WWW_OpenURL"

[HKEY_CLASSES_ROOT\ftp]
@="URL:Протокол FTP"
"EditFlags"=dword:00000002
"ShellFolder"="{63da6ec0-2e98-11cf-8d82-444553540000}"
"Source Filter"="{E436EBB6-524F-11CE-9F53-0020AF0BA770}"
"URL Protocol"=""

[HKEY_CLASSES_ROOT\ftp\DefaultIcon]
@="C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE,1"

[HKEY_CLASSES_ROOT\ftp\Extensions]
".IVF"="{C69E8F40-D5C8-11D0-A520-145405C10000}"

[HKEY_CLASSES_ROOT\ftp\shell]
@="open"

[HKEY_CLASSES_ROOT\ftp\shell\open]

[HKEY_CLASSES_ROOT\ftp\shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE\" -requestPending -osint -url \"%1\""

[HKEY_CLASSES_ROOT\ftp\shell\open\ddeexec]
@="\"%1\",,0,0,,,,"
"NoActivateHandler"=""

[HKEY_CLASSES_ROOT\ftp\shell\open\ddeexec\Application]
@="Firefox"

[HKEY_CLASSES_ROOT\ftp\shell\open\ddeexec\Topic]
@="WWW_OpenURL"

[HKEY_CLASSES_ROOT\FirefoxHTML]
@="Firefox HTML Document"
"FriendlyTypeName"="Firefox HTML Document"

[HKEY_CLASSES_ROOT\FirefoxHTML\DefaultIcon]
@="C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE,1"

[HKEY_CLASSES_ROOT\FirefoxHTML\shell]
@="open"

[HKEY_CLASSES_ROOT\FirefoxHTML\shell\open]

[HKEY_CLASSES_ROOT\FirefoxHTML\shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE\" -requestPending -osint -url \"%1\""

[HKEY_CLASSES_ROOT\FirefoxHTML\shell\open\ddeexec]
@="\"%1\",,0,0,,,,"
"NoActivateHandler"=""

[HKEY_CLASSES_ROOT\FirefoxHTML\shell\open\ddeexec\Application]
@="Firefox"

[HKEY_CLASSES_ROOT\FirefoxHTML\shell\open\ddeexec\Topic]
@="WWW_OpenURL"

[HKEY_CLASSES_ROOT\FirefoxURL]
@="Firefox URL"
"EditFlags"=dword:00000002
"FriendlyTypeName"="Firefox URL"
"URL Protocol"=""

[HKEY_CLASSES_ROOT\FirefoxURL\DefaultIcon]
@="C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE,1"

[HKEY_CLASSES_ROOT\FirefoxURL\shell]
@="open"

[HKEY_CLASSES_ROOT\FirefoxURL\shell\open]

[HKEY_CLASSES_ROOT\FirefoxURL\shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\FIREFOX.EXE\" -requestPending -osint -url \"%1\""

[HKEY_CLASSES_ROOT\FirefoxURL\shell\open\ddeexec]
@="\"%1\",,0,0,,,,"
"NoActivateHandler"=""

[HKEY_CLASSES_ROOT\FirefoxURL\shell\open\ddeexec\Application]
@="Firefox"

[HKEY_CLASSES_ROOT\FirefoxURL\shell\open\ddeexec\Topic]
@="WWW_OpenURL"

[HKEY_CLASSES_ROOT\.htm]
@="FirefoxHTML"
"Content Type"="text/html"
"PerceivedType"="text"

[HKEY_CLASSES_ROOT\.html]
@="FirefoxHTML"
"Content Type"="text/html"
"PerceivedType"="text"

[HKEY_CLASSES_ROOT\.shtml]
@="FirefoxHTML"
"Content Type"="text/html"
"PerceivedType"="text"

[HKEY_CLASSES_ROOT\.webm]
@="FirefoxHTML"

[HKEY_CLASSES_ROOT\.xhtml]
@="FirefoxHTML"
"Content Type"="application/xhtml+xml"

[HKEY_CLASSES_ROOT\.xht]
@="FirefoxHTML"
"Content Type"="application/xhtml+xml"

[HKEY_CLASSES_ROOT\.xht]
@="FirefoxHTML"
"Content Type"="application/xhtml+xml"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\ftp\shell\open\ddeexec\ifExec]
@=-

-[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\ftp\shell\open\ddeexec\ifExec]

Проверено все работает.
Путь "C:\Program Files\Mozilla Firefox" замените на свой, если надо.