invisible summary bar with Firefox

[dhardy]

The "summary" (what I might call contents) bar on the left won't show up (using Firefox 30.0). If I open the website in Google Chrome, clicking the top-left button opens or closes this bar nicely, but in Firefox this bar is always invisible, and only the second button (linking to the code on GitHub) does anything.

I haven't tried reproducing on another computer, but on this one it happens every time: Firefox 30.0 on Fedora 20.

[abonander]

Strangely, I don't have this issue in Firefox 31.0 on Windows 7,

[mdinger]

1. Run this in a terminal: firefox -P
2. Create a new profile
3. Run the new profile
4. Retest the issue

After testing, rerun firefox -P and you can safely delete the profile you created. Run the original profile and it should be back to normal.

If this fixed the issue:

1. Go to Troubleshooting Information in the help menu
2. Click Reset Firefox... on the top right

This will reset your profile while retaining bookmarks and such (they get corrupted over time and lead to issues). Take care to read the text when running the reset utility so that you don't suffer data loss.

[dhardy]

Thanks mdinger, that solves it.