I have a registry key for opening a link in myBrowser from Firefox and Chrome. But it keeps opening the same link over and over again... 60 tabs and more!
Set up as a "protocol handler" the registry key was added to HKEY_CLASSES_ROOT...
HKEY_CLASSES_ROOT\mybrowser\URL Protocol
HKEY_CLASSES_ROOT\mybrowser\shell\open\command\"C:\Program Files\MyBrowser\mybrowser.exe" "%1"
URL Protocol is blank.
Then to test, I open Firefox or Chrome and visit my test page which has a hyperlink like...
<a href="mybrowser://example.com/page.html">test</a>
This launches MyBrowser ok which loads the nominated page ok, but then it keeps repeating that action endlessly... resulting in 60 tabs and more being opened.