Enpä tiedä, ei Mozillan Support sivujen mukaan Firefoxin profiilikansioon tallenneta mitään minkä luulisi rikkovan sen osien toiminnallisuutta: "What information is stored in my profile?
Bookmarks and Browsing History: The places.sqlite file contains all your Firefox bookmarks and the list of all the websites you’ve visited. For more information see Bookmarks.
Passwords: Your passwords are stored in the key3.db and signons.sqlite files. For more information see Remembering passwords.
Site-specific preferences: The permissions.sqlite file stores many of your Firefox permissions that are set on a site-by-site basis. For example, it stores which sites are allowed to display popups.
Search engines: The search.sqlite file and searchplugins folder store the search engines that are available in the Firefox Search bar.
Personal dictionary: The persdict.dat file stores any custom words you have added to Firefox's dictionary. For more information see Using the spell checker.
Autocomplete history: The formhistory.sqlite file remembers what you have searched for in the Firefox search bar and what information you’ve entered into forms on websites. For more information see Form autocomplete.
Cookies: A cookie is a bit of information stored on your computer by a website you’ve visited. Usually this is something like your site preferences or login status. Cookies are all stored in the cookies.sqlite file.
Security certificate settings: The cert8.db file stores all your security certificate settings and any SSL certificates you have imported into Firefox.
Download actions: The mimeTypes.rdf file stores your preferences that tell Firefox what to do when it comes across a particular type of file. For example, these are the settings that tell Firefox to open a PDF file with Acrobat Reader when you click on it. For more information see Managing file types.
User styles: If they exists, the \chrome\userChrome.css and \chrome\userContent.css files store user-defined changes to either how Firefox looks, or how certain websites or HTML elements look or act. "
Lähde:
http://support.mozilla.com/en-US/kb/Profiles#w_what-information-is-stored-in-my-profileItsehän siirsin siis nuo profiilikansion tiedot aikanaan win-Firefoxista Ubuntun puolelle. Eilen Vistan asennettuani kakkoskäyttikseksi asensin siihenkin FF6:n ja kopioin taas tuon profiilin Ubuntun puolelta win-Firefoxiin, ongelmia ei ilmaantunut siihenkään suuntaan.