Autocomplete from bookmarks doesn't work when I delete all history, until I delete places.sqlite, but then stops working again next time the history is cleared.

please try a Refresh but Note that this does more than uninstalling and re-installing does. Normal uninstalling does not remove some preferences which may have become corrupt. Please Refresh but do this 1st: *https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer *https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles then *https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings TEST....... If no issues then Extensions which need to be added back in 1 at a time and tested ..... Or it is your Profile : Make a new one and test ...: *https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles If is your Profile : *https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile *http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

How are you clearing that history? Is that via internal means or are you using an external application? *https://support.mozilla.org/en-US/kb/delete-browsing-search-download-history-firefox

''cor-el [[#answer-1153038|said]]'' <blockquote> How are you clearing that history? Is that via internal means or are you using an external application? *https://support.mozilla.org/en-US/kb/delete-browsing-search-download-history-firefox </blockquote> It's being cleared via internal means.

Pkshadow, I tried the refresh, but even without restoring my profile or installing a single extension, the bug persisted. Roland Tanglao, thanks!