Firefox Community Forum

Hi everyone.

Basically when the browser is (I think) idle while watching YouTube, FF is constantly backing up (the timestamp in the backup file name keeps getting updated). From the settings page I thought it once every 24 hours. I noticed from higher than normal CPU usage impacting FF and the Windows search indexer. Which reverted to normal once I disabled the backup.

I checked the about config:

• browser.backup.scheduled.minimum-time-between-backups-seconds

Is set to 24 hours (86400 seconds)

But I also noticed:

• browser.backup.scheduled.idle-threshold-seconds

Is set to 15 seconds(!). Is that what I think it is? Back up whenever there's a 15 sec idle window, regardless of the minimum? Can I safely make that 86400 seconds too, or does it do something else entirely?

Many thanks in advance.

Device name DESK Processor AMD Ryzen 3 3100 4-Core Processor (3.59 GHz) Installed RAM 16.0 GB System type 64-bit operating system, x64-based processor

Edition Windows 11 Home Version 25H2 Installed on ‎12/‎01/‎2026 OS build 26200.7623 Experience Windows Feature Experience Pack 1000.26100.275.0

Hello,

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pyor66

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I am very dissap0inted with y0ur backup, it d0es n0t w0rk! I messed up the patit0n 0n my nvme b00t drive n my pc Had t0 reset all. N0 w0rries I think t0 myself I can L0gin t0 reset I had tr0ublr remembering passw0rds. Firef0x 0nce passwrd reset despite using my c0rrect email etc saved n0thing. N0w I have t0 reset every L0gin f0r every site. I s0uld have stuck with chr0me. 0 0ut 0f 10. Y0u failed me the 0ne time I needed y0u! Als0 befre y0u try being smart this is my l0unge keyb0ard nt the 0ne used t0 l0gin which d0es have a w0rking 0 key

I am unable to follow instructions for activating Backup in Firefox. I don't even have a Manage Backup button. What I have in its place is:

Backup

Restore your data Use a Firefox backup file from another device to restore your data.

Choose backup file...