Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

ابحث في الدعم

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Recovering browsing history

  • 1 (رد واحد)
  • 1 has this problem
  • 18 views
  • آخر ردّ كتبه cor-el

more options

I have been using Firefox on a new computer since May 2018. I always had the setting for saving my browsing history turned on. Unfortunately, I have recently discovered that I can only view the history of the last 6 months (February 15 to today). Does this mean Firefox deleted the history from May 2018 to January 2020 unbeknown to me? Is it a matter of setting the places.history.expiration.transient_current_max_pages parameter in about:config to a certain level? I was able to set this parameter to a higher level now, but it did not help to recover the history. Is there any other way?

I have been using Firefox on a new computer since May 2018. I always had the setting for saving my browsing history turned on. Unfortunately, I have recently discovered that I can only view the history of the last 6 months (February 15 to today). Does this mean Firefox deleted the history from May 2018 to January 2020 unbeknown to me? Is it a matter of setting the '''places.history.expiration.transient_current_max_pages''' parameter in about:config to a certain level? I was able to set this parameter to a higher level now, but it did not help to recover the history. Is there any other way?

All Replies (1)

more options

There is no time limit for the history, only a maximum for the number of entries in the . If you are below this limit and lose history then something else must be removing older history. Note that Sync only stores a limited amount of history if you use that feature.

You can see the current stats if you click "Verify Integrity" on the "Help -> Troubleshooting Information" (about:support) page.

Current Firefox versions keep a maximum number of visited page and do not have a time limit for the history. Firefox determines how many pages can be kept without affecting performance. The places.history.expiration.transient_current_max_pages pref is a read-only pref that keeps the current value of this calculated maximum number of visited pages. You can create a new Integer pref named places.history.expiration.max_pages if you want to modify the automatically calculates number of pages as shown in places.history.expiration.transient_current_max_pages.