spelling correction for bug reporting template

[Ryder17z]

Currently:

• I have checked this problem is not ocurring in the latest version of Firefox ESR.

Fixed:

• I have checked this problem is not occurring in the latest version of Firefox ESR.

[breadbeforerice]

Currently:

I have tried to create a new profile and the issue still occurs.

Another sentence.
English is not my native language, so it may be correct, but I feel uncomfortable when I translate it.
This representation means that no new profile is actually created.

[CutterKnife]

#1202