Google's social network doesn't yet have a dedicated Firefox toolbar, but the Google+ Manager Firefox add-on brings some useful things to the table. The Google+ Manager adds a small button to Google pages. Clicking on that button produces a drop-down menu of links. You can then go directly to your Google+ profile, photos, albums, Circles, settings, and more; you can even shorten a URL. Although Google+ Manager offers many options for navigating directly to your Google+ account, remember that it works only on Google Web pages.
Note: This link takes you to the add-on's page at Mozilla.org, where you can automatically install the file into your Firefox browser.