用了这个.reg吧
自己研究
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\FirefoxHTML]
[HKEY_CLASSES_ROOT\FirefoxHTML\DefaultIcon]
@="\"C:\\Program Files\\Mozilla Firefox\\firefox.exe\",1"
[HKEY_CLASSES_ROOT\FirefoxHTML\Shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\firefox.exe\" -url \"%1\""
[HKEY_CLASSES_ROOT\.html]
@="FirefoxHTML"
"PerceivedType"="text"
"Content Type"="text/html"
[HKEY_CLASSES_ROOT\.htm]
@="FirefoxHTML"
"PerceivedType"="text"
"Content Type"="text/html"
[HKEY_CLASSES_ROOT\InternetShortcut]
@="网际网路捷径"
"EditFlags"=dword:00000002
"IsShortcut"=""
"NeverShowExt"=""
[HKEY_CLASSES_ROOT\InternetShortcut\DefaultIcon]
@="\"C:\\Program Files\\Mozilla Firefox\\firefox.exe\",1"
[HKEY_CLASSES_ROOT\InternetShortcut\shell]
@=""
[HKEY_CLASSES_ROOT\InternetShortcut\shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\firefox.exe\" -url \"%1\""
[HKEY_CLASSES_ROOT\InternetShortcut\shellex\ContextMenuHandlers\{FBF23B40-E3F0-101B-8488-00AA003E56F8}]
@=""
[HKEY_CLASSES_ROOT\.url]
@="InternetShortcut"
[HKEY_CLASSES_ROOT\htmlfile]
@="HTML Document"
"EditFlags"=dword:00000000
[HKEY_CLASSES_ROOT\htmlfile\shell]
@=""
[HKEY_CLASSES_ROOT\htmlfile\shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\firefox.exe\" -url \"%1\""
[HKEY_CLASSES_ROOT\http]
@="URL:HyperText 传输通讯协定"
"EditFlags"=dword:00000000
"URL Protocol"=""
[HKEY_CLASSES_ROOT\http\DefaultIcon]
@="\"C:\\Program Files\\Mozilla Firefox\\firefox.exe\",1"
[HKEY_CLASSES_ROOT\http\shell]
@=""
[HKEY_CLASSES_ROOT\http\shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\firefox.exe\" -url \"%1\""
[HKEY_CLASSES_ROOT\https]
@="URL:HyperText 传输通讯协定附加保密"
"EditFlags"=dword:00000000
"URL Protocol"=""
[HKEY_CLASSES_ROOT\https\DefaultIcon]
@="\"C:\\Program Files\\Mozilla Firefox\\firefox.exe\",1"
[HKEY_CLASSES_ROOT\https\shell]
@=""
[HKEY_CLASSES_ROOT\https\shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\firefox.exe\" -url \"%1\""
[HKEY_CLASSES_ROOT\ftp]
@="URL:档案传输通讯协定"
"EditFlags"=dword:00000002
"URL Protocol"=""
[HKEY_CLASSES_ROOT\ftp\DefaultIcon]
@="\"C:\\Program Files\\Mozilla Firefox\\firefox.exe\",1"
[HKEY_CLASSES_ROOT\ftp\shell]
@=""
[HKEY_CLASSES_ROOT\ftp\shell\open\command]
@="\"C:\\Program Files\\Mozilla Firefox\\firefox.exe\" -url \"%1\""