Improve coverage for capabilities #334

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10 errors

Can't exec "dbus-launch": No such file or directory

'/opt/hostedtoolcache/perl/5.32.1/x64/bin/perl --version' did not produce output that could be parsed. Assuming modern Marionette is available

'/opt/hostedtoolcache/perl/5.32.1/x64/bin/perl --version' did not produce output that could be parsed. Assuming modern Marionette is available

'/opt/hostedtoolcache/perl/5.32.1/x64/bin/perl --version' did not produce output that could be parsed. Assuming modern Marionette is available

'/opt/hostedtoolcache/perl/5.32.1/x64/bin/perl --version' did not produce output that could be parsed. Assuming modern Marionette is available

Use of uninitialized value in concatenation (.) or string

Use of uninitialized value in numeric eq (==)

BCD file is not available. Please run 'build-bcd-for-firefox'

BCD file is not available. Please run 'build-bcd-for-firefox'

**** DEPRECATED PARAMETER - using printBackground as a parameter for the pdf(...) method HAS BEEN REPLACED BY the print_background parameter ****