This is easy to reproduce, and this is present in epiphany-2.28 and midori while works fine under firefox: 1. Open a text file (with gedit, for example) and copy a text 2. Go to a page to paste it, like https://bugs.webkit.org/show_bug.cgi?id=27837 3. Try to directly right click on "Additional comments" box to paste the copied text You won't be able to paste it, as you need to select the box before right clicking on it. This is not needed when using gecko browsers Thanks