Các câu trả lời gần đây cho Firefox does not remember history-why?https://support.mozilla.org/vi/questions/10384732014-12-29T23:14:55-08:00Glad to help. Good luck.
2014-12-29T23:14:55-08:00fredmcd-hotmailhttps://support.mozilla.org/vi/questions/1038473#answer-670821<p>Glad to help. Good luck.
</p>Thanks for your replies. Initially I had removed the places.sqlite files but the problem remained th2014-12-29T18:22:12-08:00hannes_stefanhttps://support.mozilla.org/vi/questions/1038473#answer-670768<p>Thanks for your replies. Initially I had removed the places.sqlite files but the problem remained the same. The problem was indeed caused by a "system care" program that removed bookmarks and history every time when firefox was closed down......Thanks again Stefan
</p>You can check for problems with the places.sqlite database file in the Firefox profile folder.
http2014-12-27T12:38:07-08:00cor-elhttps://support.mozilla.org/vi/questions/1038473#answer-669960<p>You can check for problems with the <b>places.sqlite</b> database file in the Firefox profile folder.
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<ul><li><a href="http://kb.mozillazine.org/Bookmarks_history_and_toolbar_buttons_not_working_-_Firefox" rel="nofollow">http://kb.mozillazine.org/Bookmarks_history_and_toolbar_buttons_not_working_-_Firefox</a>
</li><li><a href="https://support.mozilla.org/kb/Bookmarks+not+saved#w_fix-the-bookmarks-file" rel="nofollow">https://support.mozilla.org/kb/Bookmarks+not+saved#w_fix-the-bookmarks-file</a>
</li></ul>
<ul><li>Places Maintenance: <a href="https://addons.mozilla.org/firefox/addon/places-maintenance/" rel="nofollow">https://addons.mozilla.org/firefox/addon/places-maintenance/</a>
</li></ul>History can be removed or not recorded several ways;
1) Running Firefox in Private Mode (nothing i2014-12-27T09:42:56-08:00fredmcd-hotmailhttps://support.mozilla.org/vi/questions/1038473#answer-669924<p>History can be removed or not recorded several ways;
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<ul><li> 1) Running Firefox in Private Mode (nothing is recorded)
</li><li> 2) Privacy settings (Type <strong>about:preferences#privacy</strong>&lt;Enter&gt;<br> in the address bar.)
</li><li> 3) Many disk cleaners and anti-virus type programs can remove data from browsers. Open their settings and have them leave the browsers alone.
</li><li> 4) Mal-ware.
</li></ul>