This page points out some ways you can use your web browser to get the most out of P4Web.
Using bookmarks
Right-clicking on links
Using the "Back" button
Resetting the page content limit
Displaying file content
Reducing P4Web's impact on the Perforce Server
Workspace file link
You can use bookmarks to store any non-default settings you choose (current client, file display preferences, etc.) with the Settings tab. You can also use a bookmark to save your Jobs list view preferences.
Most browsers successfully use the filename suffix and/or the first few bytes of the file content to determine how to open the file. If you have a file whose suffix P4Web does not recognize, you'll either see garbage characters displayed in the browser or an error message. Note that P4Web has some MIME information for files stored in Perforce, but it may send file content to your browser without a MIME type header, and let your browser decide what to do with it.