PhantomPDF plugin for Firefox doesn't close a process after close a page

[Yaumen]

I noticed that after close a PDF viewer page a process doesn't close automatically.
After some work in Firefox (watching PDF files) a Windows process list look like this:

I can close these processes only manualy or to close Firefox.

Windows XP SP3 / Firefox v32 / PhantomPDF v6.2.1.0618

[cherry]

Hi Yaumen,

I've forwarded this issue to QA team for further investigation. Report ID#: 60886. You may write to [email protected] to track the processing status of it. Thank you.

[cherry]

Hi Yaumen,

Several questions for this issue:
1) Can the issue be replicated upon opening and closing the PDF document? Or is there any operation that caused the problem?
2) Can it be 100% replicated? Can it be fixed if you re-launch Firefox or computer? What about the result if you re-install PhantomPDF?
3) Is it an online PDF document or a local PDF document that you try to open? Did it happen to specific document or any PDF document?