From the article from mozillazine.org:
mozilla.org today released upgrades to both Firefox 0.9 (0.9.1) and
Thunderbird 0.7 (0.7.1) to fix some minor bugs present in both
releases. Both releases correct some flaws in the extension system
that some users may have been experiencing, as well as a new icon set
for the navigation toolbar on Windows and Linux in Firefox 0.9.1. All
users of both products should get this upgrade.
Here's what's new in this release of Firefox:
* New Default Theme
An updated Default Theme now presents a uniform appearance across all
three platforms - a new crisp, clear look for Windows
users. Finetuning for GNOME will follow in future releases.
* Comprehensive Data Migration
Switching to Firefox has never been easier now that Firefox imports
data like Favorites, History, Settings, Cookies and Passwords from
Internet Explorer. Firefox can also import from Mozilla 1.x, Netscape
4.x, 6.x and 7.x, and Opera. MacOS X and Linux migrators for browsers
like Safari, OmniWeb, Konqueror etc. will arrive in future releases.
* Extension/Theme Manager
New Extension and Theme Managers provide a convenient way to manage
and update your add-ons. SmartUpdate also notifies you of updates to
Firefox.
* Help
A new online help system is available.
* Lots of bug fixes and improvements
Copy Image, the ability to delete individual items from Autocomplete
lists, SMB/SFTP support on GNOME via gnome-vfs, better Bookmarks,
Search and many other refinements fine tune the browsing experience.
For Linux/GTK2 Users
* Look and Feel Updates
Ongoing improvements have been made to improve the way Firefox adheres
to your GTK2 themes, such as menus.
* Talkback for GTK2
Help us nail down crashes by submitting talkback reports with this
crash reporting tool.
add it to PLIST so that moz-install will copy it (the mozilla packages
are correct). It seems that firefox dosn't need libfreebl_pure32_3.so to
use SSL, so I didn't add it to the PLIST.
in PR pkg/24603.
Mozilla Firefox is a free, open-source and cross-platform web browser
for Windows, Linux, MacOS X and many other operating systems. It is
small, fast and easy to use, and offers many advantages over other web
browsers, such as tabbed browsing and the ability to block pop-up
windows.
Firefox also offers excellent bookmark and history management, and it
can be extended by developers using industry standards such as XML,
CSS, JavaScript, C++, etc. Many extensions are available.