ERP5TypeFunctionalTestCase: configure firefox to grant location access

This would catch potential problems only occuring when the location has
been granted.
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-TestRunner2

00:52:26

failed ERP5.UnitTest-TestRunner2

01:56:17

failed ERP5.UnitTest-Zope2-ForTestRunner2

01:59:46

passed ERP5.CodingStyleTest-TestRunner2

01:04:02

passed ERP5.CodingStyleTest-TestRunner2

00:39:53

passed ERP5.CodingStyleTest-TestRunner2

00:58:26

passed ERP5.CodingStyleTest-TestRunner2

01:07:17

passed ERP5.UnitTest-TestRunner2

01:43:48

failed ERP5.UnitTest-TestRunner2

05:13:05

failed ERP5.UnitTest-TestRunner2

02:36:07

passed ERP5.UnitTest-TestRunner2

02:30:26

failed ERP5.UnitTest-Zope2-ForTestRunner2

05:39:26

passed ERP5.UnitTest-Zope2-ForTestRunner2

01:29:21

passed ERP5.UnitTest-Zope2-ForTestRunner2

02:11:47

failed ERP5.UnitTest-Zope2-ForTestRunner2

03:49:45

canceled ERP5.UnitTest-Zope2-ForTestRunner2

01:22:43