It is possible to import your saved passwords from one profile to another. This is handy if you are running Firefox on another computer or if you have to create a fresh profile when upgrading (or downgrading) Firefox. To do this, you will need to know where your profile folder is located.

From Firefox 2 to Firefox 2:

1. Close Firefox 2
2. In the OLD profile folder locate and copy the files: signons2.txt and key3.db
3. In the NEW profile folder replace (paste) the files from step 2.
4. Start Firefox 2

From Firefox 2 to Firefox 3 (upgrade):

1. Close Firefox 2
2. In the Firefox 2 profile folder locate and copy the files: signons2.txt and key3.db
3. In the Firefox 3 profile folder delete the file signons3.txt
4. Replace (paste) with the files from step 2.
5. Start Firefox 3.  Note: Firefox 3 will automatically change signons2.txt to signons3.txt

From Firefox 3 to Firefox 3:

1. Close Firefox 3
2. In the OLD profile folder locate and copy the files: signons3.txt and key3.db
3. In the NEW profile folder replace (paste) with the files from step 2.
4. Start Firefox 3

From a Firefox 3 to Firefox 2 (downgrade):

1. Close Firefox3
2. In the Firefox 3 profile folder locate and copy the files: signons3.txt and key3.db
3. In the Firefox 2 profile folder delete the file: signons2.txt
4. Replace (paste) with the files from step 2.
5. Rename signons3.txt to signons2.txt
   
6. Start Firefox 2.

From Firefox 2 to Firefox 3.5 (upgrade):

1. Close Firefox 2
2. In the Firefox 2  profile folder locate and copy the files: signons2.txt and key3.db
3. In the Firefox 3.5 profile folder delete the files (note: not all files may be in the folder)
   • signons2.txt
   • signons3.txt
   • keys3.db
   • signons.sqlite
     
4. Replace (paste) with the files from step 2.
5. Start Firefox 3.5  Note: Firefox 3.5 will automatically generate a new signons.sqlite file

From Firefox 3 to Firefox 3.5 (upgrade):

1. Close Firefox 3
   
2. In the Firefox 3  profile folder locate and copy the files: signons3.txt and key3.db
3. In the Firefox 3.5 profile folder delete the files (note: not all files may be in the folder)
   • signons2.txt
   • signons3.txt
   • keys3.db
   • signons.sqlite
4. Replace (paste) with the files from step 2.
5. Start Firefox 3.5  Note: Firefox 3.5 will automatically generate a new signons.sqlite file