Firefox Support Forum

Got a new PC and all my sincronized data is gone.

Don't have the profile in the account, nor do i have the files that were on the computer.

Is there any way to recover this info?

I reset my windows 10 installation thinking that it would be similar to a "backup and restore", but it wasnt. I wiped out nearly everything I had installed.

I hope that can learn how to load bookmarks from saved favorites folder.

Any help?

After the last upgrade my bookmarks disappeared. What happened? Saved passwords too. History too. Also want to add that it is difficult to get support when needed. Maybe I need to go with Safari.

Hey, Something went wrong today, i got logged out and lost all my bookmarks. I've tried logging-in from every possible email and phone number i have, somehow cannot find my bookmarks. They are very important to my work and career path.

Please help with recovery soon!

I wasted about an hour trying to make my bookmarks within a folder I named (let's call it "Foolhardy books and CD's") be transferred to Chrome. Every single OTHER folder and bookmark within NOT called "mobile bookmarks" IS transferring!!! Worst is 1) I didn't start these bookmarks on the computer I'm using...and use 'sync' but no one ever told me that would become a dodo bird distinction when it comes to easy bm transfers. I have tried saving it in JSON or plain text on desk top as new folder and again, it just doesn't like the particular Foolhardy file from any otherwise complete 'add to Chrome from Firefox" etc. There's some dudes on a google search on this with a converter, but it doesn't do a darn thing, and no clear way to contact them "if somethings not working". My concern is if I can't get this bookmark folder to convert out of mobile format, its pretty pathetic, meaning it is trying to make me stay within Firefox/Mozilla format....ugggh!

websites showing NONE of them are connected in firefox either in my bookmarks toolbar or the quick list of websites on the top bar, so therefore I can not open any webpages. Please advise.

Trying to bookmark a pdf, it's on the same location across my devices, but my devices have different usernames, so I added "%userprofile%" to the filepath so that it opens on any device. The issue is that when I enter this into the Bookmark URL bar, it automatically sticks "25" next to the % characters, which makes the bookmark unusable.

"C:\Users\%userprofile%\Documents\example.pdf" automatically becomes "file:///C:/Users/%25userprofile%25/Documents/example.pdf"

Also, as I just discovered now when I pasted this URL into this post, a second "25" is inserted, becoming: "file:///C:/Users/%2525userprofile%2525/Documents/example.pdf"

The dozens of bookmarks I had that I did not put in folders has grown in numbers exponentially. I don't know how. I had nothing to do with it. I went from having about 200 bookmarks (outside of what I had in separate folders) to what seems to be roughly 5000. This is ridiculous. How can I 1, correct this, and 2, stop if from happening again.

I recently uninstalled Firefox and reinstalled it directly from the microsoft store as it was very slow (probably due to not being updated) and I am sad to see all my bookmarks and important information is gone. Is there any way I can restore it? Thank you in advance.

I downloaded version 101.0.1 and lost most of my bookmark TAGS! These help me find things in my many bookmarks. I've kept version 98.0.1 in my Applications folder (MAC Mojave 10.14.6) and it still has all my TAGS intact. I can't copy / paste or drag and drop them. How can I transfer my bookmarks TAGS?

I own a mac and had to erase all my data from my computer in order to upgrade to new system. Issue is - the apple support person did not remind me to save down my firefox browser data/bookmarks. Now my mac is updated and it's like a brand new computer. I searched previous forums and apparently firefox automatically saves down your data but I don't see it in the appropriate folder (Old Firefox Data >bookmarkbackups) - I see data from 2016 and 2017. Can I recover these bookmarks?? I had a lot of important ones saved..

Like many others, I have used Firefox for a long, long time. Today (2/14/2023) is the last straw. I installed the latest upgrade and now my Bookmarks are all gone. When I say all gone, I mean "all gone." There is no backup, no previous dates, no nothing. I tried all the suggested by Firefox in the pages of the website. No help. And this is not an isolated instance. For the past several upgrades, many such issues have occurred with great frequency.

This time, my layouts were gone, my toolbar icons were gone - not even in the "Customize" option. This is ridiculous and it is getting quite tiring. I'm not sure what the criteria is for developers, but it seems like some of the open source resources could be saboteurs even though that sounds far-fetched.

For Mozilla, it boils down to this: either stop this problem so that it doesn't repeat or I (no doubt along with many others) will find it simple enough to relocate to another browser; maybe with fewer features but absolutely with fewer frustrations and difficulties.

I would prefer that Mozilla fix the situation permanently, but I am not averse to seeking simplicity and performance.

Joe Krsak

Hi support team,

I have met this issue twice. Before I retired my old PC, I did click the "sync now". However, when I login in Firefox in my new PC, I found the bookmarks are very very out of date. Because my old PC was formatted, I lost my latest bookmarks in Firefox.

Could you help with this?

Eason BR