floating transparent block
In the last few days, a transparent rectangular panel is showing up in the upper right hand corner when I open certain websites--Washington Post, The Nation, and Talking Points Memo, and this morning Kanopy and the Zojirushi website. It often covers functions like login and search. I can *see* the buttons, but I can't click them through the transparent panel.
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Are you using content blocking extensions?
If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block content (Adblock Plus, NoScript, DuckDuckGo PE, Disconnect, Ghostery, Privacy Badger, uBlock Origin), always make sure such extensions do not block content.
- make sure your extensions and filters are updated to the latest version
- https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems
Ghostery is a content blocking extensions that can block data and might be causing to hide some content and leave a transparent block behind.
You can start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.
- switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
- do NOT click "Refresh Firefox" in the Troubleshoot Mode start window