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Firefox Sync lost all my data after 3 months of inactivity. Can I troubleshoot this?

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  • Last reply by FredMcD

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Is it normal for Firefox Sync to wipe data after a period of inactivity? account.services.mozilla.org says I'm using 158KB of data. Does this sound like the amount of data a fresh firefox profile would upload to sync, or is my data perhaps still there?

Is there any way to access the logs? There is nothing in the weaves/logs directory of my profile.

Is it normal for Firefox Sync to wipe data after a period of inactivity? account.services.mozilla.org says I'm using 158KB of data. Does this sound like the amount of data a fresh firefox profile would upload to sync, or is my data perhaps still there? Is there any way to access the logs? There is nothing in the weaves/logs directory of my profile.

Chosen solution

Hi dismayy, There is a new sync service that was introduced in version 29. accounts.firefox.com is the place to sign in. Sync your Firefox bookmarks, history, passwords and more

However to access the logs are the same. As for loosing data, please make a local back up Back up and restore information in Firefox profiles

  • How do I turn on sync logs:
  1. Open about:config and turn on: services.sync.log.appender.file.logOnSuccess and services.sync.log.logger.engine.bookmarks
  2. Restart Firefox and look at: about:sync-log
  3. Logs and error messages will be located here

Please also use pastebin.mozilla.org for sharring any errors that relate to this issue.

Thank you.

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Chosen Solution

Hi dismayy, There is a new sync service that was introduced in version 29. accounts.firefox.com is the place to sign in. Sync your Firefox bookmarks, history, passwords and more

However to access the logs are the same. As for loosing data, please make a local back up Back up and restore information in Firefox profiles

  • How do I turn on sync logs:
  1. Open about:config and turn on: services.sync.log.appender.file.logOnSuccess and services.sync.log.logger.engine.bookmarks
  2. Restart Firefox and look at: about:sync-log
  3. Logs and error messages will be located here

Please also use pastebin.mozilla.org for sharring any errors that relate to this issue.

Thank you.

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These add-ons can be a great help by backing up and restoring Firefox

FEBE (Firefox Environment Backup Extension) {web link} FEBE allows you to quickly and easily backup your Firefox extensions, history, passwords, and more. In fact, it goes beyond just backing up -- It will actually rebuild your saved files individually into installable .xpi files. It will also make backup of files that you choose.

OPIE {web link} Import/Export extension preferences