Voice Fill doesn't display the result of recording and becomes unresponsive

[SoftVision-CarmenFat]

[Affected versions]:

• Release 54.0.1
• Beta 55.0b6

[Affected Platforms]:

• All Windows
• All Mac
• All Linux

[Prerequisites]:

• Have a Firefox profile with the latest Voice Fill version (1.0 -dev, built on 06/07/2017) installed.

[Steps to reproduce]:

1. Open the browser with the profile from prerequisites and navigate to a search engine website (e.g. www.google.com).
2. Click on the microphone button.
3. Click on "Allow" and say a word.
4. Wait for ~6 seconds and observe what happens next.

[Expected result]:

• The spoken word is displayed as text.

[Actual results]:

• No text is displayed and the add-on becomes unresponsive.

[Notes]:

• The unresponsive dialog box remains blocked in the same place if the page is scrollable.
• The dialog box shrinks if clicked, but remains in the same unresponsive state.
• Here is a screencast of the issue:

[ghost]

This is broken because the old XPI is pointing to the old server. Andre will send a link to a new XPI