Yes, it's stable. You can update automatically by clicking '''Help '''| '''Check For Updates'''. ---- If the new layout in FF4 is not to your taste, you can rearrange it to look like the version you have now by doing the following.<br><br> * Right click a blank part of the tab bar and click "Tabs on top" to remove the checkmark. Tabs will subsequently reappear below the search bar.<br><br> * Repeat the same steps, but click the top one called "Menu bar". This will reinstate the text links at the top.<br><br> * To rearrange the layout, repeat the same steps again and choose "Customize". A panel will open and while that remains onscreen, you can move elements like toolbars, buttons etc around and place them anywhere you wish. You can also drag anything you don't like into that panel and add anything you want by dragging it out of there.<br><br> * To replace the status bar at the foot of the page, install this add-on: https://addons.mozilla.org/en-US/firefox/addon/status-4-evar/<br><br>