This is probably a Windows 10 question, but its Help forums are so poor.... From a list of files in Windows Explorer, I want to right-click on a file name to pull up context menu, then click Send To, and then click Mail Recipient. I want Windows to respond by opening Firefox to default gmail page, with the file as an attachment. Should be easy. But from what I've found so-far, that legacy feature works only with stand-alone MAPI programs like Thunderbird and Outlook. I want to do with web mail. Has anyone gotten this to work? Thanks Bill