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A folder in Bookmarks disappeared AGAIN!

  • 26 odpovedí
  • 1 má tento problém
  • 79 zobrazení
  • Posledná odpoveď od cor-el

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A folder in Bookmarks disappeared AGAIN! This is ridiculous. Every now and then Firefox loses a Bookmark folder. To make matters worse, I can waste a lot of time trying to find it and get no where. I have better things to do than trying to find lost Bookmark folders! How can I easily find the very important Bookmark folder quickly? Undo does not help.

Všetky odpovede (6)

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Pomohla vám táto odpoveď?

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What about any ramifications of a new profile using Firefox including syncing with another computer? Upon a restart will I be asked what Profile to use and etc.?

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The new profile should become the default.

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I lost my setting and Tabs in the new Profile! How can I get them back? As result I have reverted back to the old Profile. Migrating to a new Profile is not as seemingly easy as made to believe.

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I take it the new profile is working without a problem, yes?

When you are ready, we can start moving parts of your old data and Copy it to the new profile.


First; open your file browser to the New profile;

Type about:support<enter> in the address bar.

Under the page logo on the left side, you will see Application Basics. Under this find Profile Folder. To its right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.

Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder

Linux: Under the page logo on the left side, you will see Application Basics. Under this find Profile Directory. To its right press the button Open Directory.


Second, open another file browser to the Old Firefox folder on your desktop. Then open the folder with the latest date, or whatever one you want to use.


Warning ! ! Only Copy the files you are told. We will avoid anything that might cause problems. Here is the list of files;

cookies: cookies.sqlite Do not bother. Cookies will be created when you return to the website. However, you will have to log in everywhere. And you may lose any settings that websites store on your computer.

extensions(add-ons, themes): it would be better to download them fresh. If you need to remember what add-ons you had, open the extensions sub-folder and look at the .xpi files


logins.json and key3.db [v58+]key4.db : These are the password files. Copy Both !

persdict.dat : custom dictionary - words you added to the dictionary

mimeTypes.rdf [v55+]handlers.json : What to do with what type of file.

places.sqlite : History and Bookmarks.

prefs.js : Your settings. Note: If you were having problems, this could be contaminated.

cert8.db [v58+]cert9.db and possibly cert_override.txt : Stores all your security certificate settings and any SSL certificates you have imported into Firefox. If removed, the cert8.db, cert9.db file will be replaced.

search.json.mozlz4 : file stores the user-installed search engines that are available in the Firefox v47+

search.sqlite file and searchplugins folder store the search engines that are available in the Firefox Search bar before Firefox v47


Copy these files from the old to the new. You may get a message that the files already exist. Choose to over-write for each file.

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Note that you should be cautious with copying files from the old profile to the new profile as you can easily transfer the problem to the new profile. At least do not copy places.sqlite and keep a backup copy of prefs.js if you want to try to move old settings.

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