hrbartender

Resolved for me finally – it was Google Gears in Firefox. BUT, disabling it from the top Tools bar didn’t do it because I use the All-in-One Sidebar add-on. I had to:

1. Open the Sidebar
2. Click on the installed extensions and themes icon
3. Click on Google Gears
4. Click on Disable

After that, the TinyMCE showed up on the visual editor.

I tried the 5-step fix with the wp-admin and wp-includes folders and it’s still not fixed. Downloaded the WP-insert plugin and using the WISIWIG editor as a work around until the issue is resolved.

I have the TinyMCE on the HTML editor only – not the visual. Can switch between the two and what I type is showing up. Same in both IE8 and Firefox.