Hello,

I haven't released new version for a long time now so this is most probably related to something in your Firefox profile (since so far nobody else is reporting this).
You can try to reinstall my add-on (make sure to export your dials to a file first), but it that won't help, I would suggest you to use Firefox Reset - this often fixes many profile-related bugs:
https://support.mozilla.org/kb/refresh-firefox-reset-add-ons-and-settings
Resetting profile will preserve your passwords, bookmarks and other important things (but not add-ons data).
Before resetting your profile I would suggest you to setup Firefox Sync. - this will backup the list of installed add-ons and after reset it will reinstall them.

Feel free to contact me to my support e-mail if it didn't help (of if it helps).

Best regards,
Juraj Mäsiar

Hello,

You have probably the same problem as the user below.
Make sure your homepage URL ends with "/dial.html". If the URL matches the add-on URL exactly, it should be automatically cleared (empty). You can get the correct URL from the Options page / first tab / first line.

If this didn't help, please let me know to my support e-mail.

Best regards,
Juraj Mäsiar

Hello,
That option was there due to Firefox bug that got resolved in the meantime. So I removed it.
However this should not affect the URL (I mean, it can, but you should be able to fix it easily).

Just make sure your homepage URL ends with "/dial.html". If the URL matches the add-on URL exactly, it should be automatically cleared. You can get the correct URL from the Options page / first tab / first line.

If this didn't help, please let me know to my support e-mail.

Best regards,
Juraj Mäsiar