Recent answers to Too Many Tabs Disappears After Firefox Updatehttps://support.mozilla.org/en-US/questions/11261232016-06-07T13:29:12-07:00This could be a problem with the places.sqlite file or a compatibility issue with the TMT extension.2016-06-07T13:29:12-07:00cor-elhttps://support.mozilla.org/en-US/questions/1126123#answer-884941<p>This could be a problem with the places.sqlite file or a compatibility issue with the TMT extension.
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<ul><li><a href="http://blog.visibotech.com/search/label/TMT:faq" rel="nofollow">http://blog.visibotech.com/search/label/TMT:faq</a>
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<blockquote>TMT data is stored in the Library &gt; "Unsorted Bookmarks" &gt; "TooManyTabs (Do Not Delete)" folder. Please do not remove this folder in case you are just performing a downgrade.</blockquote>
<p>You would have to contact the developer of the extension for support in case of issues with the extension.
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