Firefox now supports tagging for bookmarks. Want to use your del.icio.us bookmarks in Firefox 3? Follow these simple steps:
Log into del.icio.us and go to settings > export/backup
Make sure the include tags box is checked, and click export to HTML
Check if the file size is less than 10MB.
In Firefox click on Bookmarks > Organize bookmarks
Click on the 3rd icon at the top of the window and select Backup…
Check if the file size is less than 10MB.
Upload the files you created in steps 1 and 2 here:
In Firefox click on Bookmarks > Organize bookmarks
Click on the 3rd icon at the top and select Restore > Choose file
Select the file you just downloaded from step 3