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How do I get Firefox to save history indefinitely? Right now I am losing history older than 2 months.

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places.history.expiration.transient_max_pages = 28763

I read elsewhere that is the number of pages Firefox is currently set to save, and that value is somehow chosen based on performance. There are currently 4492 pages listed in my history, according to the "Library" utility

I dont understand the performance limitation. I dont want to save pages, I just want to save what's shown in the "Library" utility: Page Name, Location and Visit Date.

I frequently find myself wanting to locate a page I visited months or even years earlier, and can usually figure it out based on those 3 things.

I have seen and read Marc Bonardos blog on this at http://blog.bonardo.net/2010/01/20/places-got-async-expiration.

I do not understand from that article what, if anything, I can do to prevent Firefox from deleting this information - Page Names, Location and Visit Date - older than 60 days.

places.history.expiration.transient_max_pages = 28763 I read elsewhere that is the number of pages Firefox is currently set to save, and that value is somehow chosen based on performance. There are currently 4492 pages listed in my history, according to the "Library" utility I dont understand the performance limitation. I dont want to save pages, I just want to save what's shown in the "Library" utility: Page Name, Location and Visit Date. I frequently find myself wanting to locate a page I visited months or even years earlier, and can usually figure it out based on those 3 things. I have seen and read Marc Bonardos blog on this at http://blog.bonardo.net/2010/01/20/places-got-async-expiration. I do not understand from that article what, if anything, I can do to prevent Firefox from deleting this information - Page Names, Location and Visit Date - older than 60 days.

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Hmmm, you're nowhere near the max pages. I've got over 92,000 with a max just under 105,000. As for performance, consider that Firefox checks history regularly for autocompleting URLs.

If you are seeing a sharp date-based cut-off, I wonder whether an extension or some external software is involved? I don't see a built-in way to set a date for that.