Kindly let us know the below information
Version of McAfee site advisor :
What incompatibility is experienced with your add on
Name some of the add on that has the issue.
A screen shot of the error/ Incompatibility.
Dinz, Firefox Aurora is the pre-release Beta version of Firefox. Currently Aurora is on version 10. SiteAdvisor may not be compatible with Aurora 10 at this stage but the SiteAdvisor team will be aware of any pending changes that will need to be made.
If arthurz1 is looking for an "about:config hack" he should be posting to the appropriate Mozilla forum to ask for assistance.