To enable the Mobile Browser Options, do the following:
1.From the Salesforce navigation on the top right click Setup.
2.To enable the option, do one of the following:
•Type Salesforce Settings in the Quick Find search field, or
•Select Platform Tools > Apps > Mobile Apps > Salesforce > Salesforce Settings, or
•Click Mobile Browser Options under the Security and Access Settings section on the Salesforce Mobile Setup page.
Searching for Salesforce Settings or selecting Mobile Browser Options
3.Select Enable Salesforce mobile web under Mobile Browser App Settings on the Salesforce Settings page. The option is selected by default.
Enable Mobile Browser Options
For more information about Enabling Mobile Browser Options, click here.
Links
Configure Basic Settings of Salesforce Mobile App
Access Converse Desk from SF1 on Mobile