Sign in to the Tumblr website. Click “Customize” to open up the Customize panel. Select “Edit HTML” to access the raw HTML code that powers your Tumblr theme. Press “Ctrl-F” to open the Find panel, and type “<body” (without quotes) into the box. Press “Enter” to locate your theme’s body tag. Type a space after the word “body” but before the tag’s closing bracket and then enter the text ‘oncontextmenu=“return false”’ (without the single quotes but including the double quotes). This operator tells the page not to display the context menu that usually appears when you right-click on a webpage. Click the “Update Preview” button and then click “Save.” Writer Bio
