Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Tìm kiếm hỗ trợ

Tránh các lừa đảo về hỗ trợ. Chúng tôi sẽ không bao giờ yêu cầu bạn gọi hoặc nhắn tin đến số điện thoại hoặc chia sẻ thông tin cá nhân. Vui lòng báo cáo hoạt động đáng ngờ bằng cách sử dụng tùy chọn "Báo cáo lạm dụng".

Tìm hiểu thêm
Solved

Browser had extremely slow performance, reset my pc, all my user data disappeared.

Nathan Giovannini đã trả lời
lunarlady12

The entire browser was acting extremely slowly, on every website, every start up. It crashed constantly to the point it was unusuable, it was even affecting the performance of the rest of my pc so I reset it and everything I had on the browser disappeared. Bookmarks, passwords, etc. I've tried going through the profile support pages but only the profile made from the reset exists. I had years worth of important bookmarks and passwords that'd I'd like to be able to get back if that's at all possible. (I'll live without them, it'll just suck trying to remember them all again) PC is Acer Aspire 3 Spin 14, Windows 10

The entire browser was acting extremely slowly, on every website, every start up. It crashed constantly to the point it was unusuable, it was even affecting the performance of the rest of my pc so I reset it and everything I had on the browser disappeared. Bookmarks, passwords, etc. I've tried going through the profile support pages but only the profile made from the reset exists. I had years worth of important bookmarks and passwords that'd I'd like to be able to get back if that's at all possible. (I'll live without them, it'll just suck trying to remember them all again) PC is Acer Aspire 3 Spin 14, Windows 10

Tất cả các câu trả lời (1)

Giải pháp được chọn

Hi lunarlady12,

I’m really sorry you’re dealing with this — losing years of bookmarks and passwords is incredibly frustrating.

Most likely, your old Firefox profile still exists on your PC, but after the reset, Firefox created a new profile, so it can’t see the old data. Here’s what you can do to check:

1. Open Firefox and type about:profiles in the address bar. 2. Look for any other profiles besides the one currently in use. 3. Click Launch profile on each one to see if your bookmarks and passwords are still there. 4. If you find the right profile, click Set as default profile so Firefox will use it automatically.

Also, check this folder on your PC:

C:\Users\<your username>\AppData\Roaming\Mozilla\Firefox\Profiles\

Your old profile should be there if the reset didn’t fully erase user data.

If you locate the old profile, you can recover all bookmarks, passwords, and history. If it’s not there, unfortunately the reset may have removed it, but in most cases it’s still recoverable.

I can guide you step-by-step to locate and restore your old profile if you want.

Đặt một câu hỏi

Bạn phải đăng nhập vào tài khoản của bạn để trả lời bài viết. Vui lòng bắt đầu một câu hỏi mới, nếu bạn chưa có tài khoản.