The pref places.history.expiration.transient_current_max_pages value seems to be incorrectly set here. PC: single core processor with 1.5 GiB of memory. places.database.cache_to_memory_percentage value is 6 The value of memsize as returned by @mozilla.org/system-info;1  is 1610072064 Based on that and the code , this._urisLimit should be: 1610072064 * 6 / 100 / 2000 = 48302 However, the current value is set to 32201, which means 1 GiB of memory. I tried setting and removing places.history.expiration.max_pages several times, transient_current_max_pages always goes back to 32201. Reproduced with Firefox 4 and on the trunk.  http://mxr.mozilla.org/mozilla-central/source/toolkit/components/places/nsPlacesExpiration.js#742  http://mxr.mozilla.org/mozilla-central/source/xpcom/tests/unit/test_systemInfo.js#40
you are dividing by 2000 that is the value for more than 1 core, if you divide by 3000 you get 32201.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 7 years ago
Resolution: --- → INVALID
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