I changed the shortcut for Launch in Firefox to Ctrl + F12. Click Run/Modify shortcut, the screen confirms the shortcut is in place and there are no conflicts. Click the cursor in an active NP++ HTML code page, do Ctrl+F12 and nothing happens.
Click Menu, Run/Launch in Firefox and launch occurs.
What am I missing?
Since you’re not using a webserver to serve your files, why not open the file directly in the browser?
Just drag and drop the html file into the browser window.
Refresh the page when you’re done editing the file in NPP.
CTRL+F5 force refreshes the page, omitting the caching behaviour of browsers.
NB: Pure HTML + CSS pages don’t need a webserver to serve the page as there’s nothing to pre/process on the server for these barebone html pages. All the rendering is done in the browser.