CONTRIBUTOR Access not behaving correctly in SharePoint 2010

Issue:

People who have only Full Control access can able to see the Site Actions Tab in the SharePoint web Application.

people who have Contribute access are unable to see the Site Action Tab with Edit Page options completely but where they should have to see and Modify/update the Pages with help of Edit Page option under Site Actions.

Resolution:

In SP WEB APP master page, Sharepoint Trimmed control has implemented to view the Site Actions Tab for only people who have access Full Control.

Changed the SharePoint Trimmed control permission to view the Site Action Tab  even  people who have permission as a Contributor.

Updated the  SharePoint Trimmed Control permission string with AddAndCustomizePages in the Master Pages.

And it started appearing with Edit Page option under Site Actions.

References:

http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.spbasepermissions.aspx