According to Lifehacker, google's browser sync extension will be discontinued. It will continue to be supported for Firefox 2 through 2008 but there are no plans to bring it over to Firefox 3.
For those of you who want to continue to use Firefox 2, we’ll maintain support for old versions of Google Browser Sync through 2008. After that, we can recommend a few other products that scratch a similar itch. We hope that one of them works for you:
Mozilla Weave [labs.mozilla.com] from Mozilla Labs—Offers bookmark and history synchronization across computers.
Google Toolbar for Firefox [toolbar.google.com]—Store your bookmarks online and access them from any computer online.
Foxmarks Bookmark Synchronizer [addons.mozilla.org]—Synchronizes your bookmarks across all computers where it is installed.
Here is some more coverage:
- Google Browser Sync To Be Discontinued
- Google Ditches Browser Sync Extension for Firefox 3
- Google discontinues Google Browser Sync