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Changing the "places.history" values for desired results

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The default value for places.history.expiration.transient_current_max_pages is set at 25309 for my browser. I wish to increase the period for which the history is being retained as presently it comes around 1 month.

What does this integer value represent,as it doesn't appear to be the number of pages( "4057 items" being shown in History).

Does putting in any random no. larger than this help me in retaining a bigger history or some thought needs to be put into it?

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Installed Plug-ins

  • Shockwave Flash 11.5 r502
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Picasa plugin
  • Adobe PDF Plug-In For Firefox and Netscape "9.4.1"
  • Adobe PDF Plug-In For Firefox and Netscape
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  • Office Plugin for Netscape Navigator

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  • User Agent: Mozilla/5.0 (Windows NT 5.1; rv:18.0) Gecko/20100101 Firefox/18.0

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browser.history_expire_days.mirror
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browser.places.importBookmarksHTML
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browser.places.smartBookmarksVersion
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browser.sessionstore.max_resumed_crashes
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places.history.expiration.transient_optimal_database_size
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Graphics
Adapter Description
Mobile Intel(R) 945GM Express Chipset Family
Adapter Drivers
ialmrnt5
Adapter RAM
Unknown
Device ID
0x27a2
Direct2D Enabled
Blocked for your graphics driver version. Try updating your graphics driver to version 6.14.10.4926 or newer.
DirectWrite Enabled
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Driver Date
7-25-2006
Driver Version
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GPU #2 Active
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GPU Accelerated Windows
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Vendor ID
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WebGL Renderer
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AzureCanvasBackend
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AzureContentBackend
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JavaScript
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Accessibility
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Expected minimum version
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NSS
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ideato
  • Top 25 Contributor
617 solutions 4263 answers

Hello avinavneer, see the excellent info : http://blog.bonardo.net/2010/01/20/places-got-async-expiration


thank you

cor-el
  • Top 10 Contributor
  • Moderator
10753 solutions 96760 answers

How many physical memory do you have?

Note that the history only show the most recent visit of a specific page, so if you visit the same pages each day then the visit count increases and that also counts as visited pages.

Firefox determines automatically how many pages can be kept without affecting the performance.
You can see the current value via the read-only pref places.history.expiration.transient_max_pages on the about:config page.