I refer to the discussion at: https://support.mozilla.org/en-US/questions/973320.
The result of the discussion is that by adding 2 new boolean preferences to the about:co… (閱讀更多)
I refer to the discussion at: https://support.mozilla.org/en-US/questions/973320.
The result of the discussion is that by adding 2 new boolean preferences to the about:config page, and then deleting the contents of the thumbnails folder in the profile, I am referring to: browser.pagethumbnails.capturing_disabled (true) and to
pageThumbs.enabled (false).
By creating those boolean preferences, it is possible to stop Firefox from showing tiles of previously visited pages in the new tab page, but having done that the new tab page still shows captions of previously visited pages - the images have gone but the web addresses are still shown. This is reported in the discussion at the address noted above.
It is not clear whether Firefox will continue to record the data in the captions as new pages are visited, but even though the thumbnails folder has been cleaned, the data in the captions is still stored somewhere.
It amazes me that having provided for cleaning of history etc for the sake of security, Firefox has been designed to make a record of the history of visited pages, and that there is no obvious way to delete it or perhaps even prevent further such data being stored. Of course, you can customise the new tab page not to show the captions, but you can easily reverse that customisation, upon doing which it is apparent that the data is still there.
Firstly, how can I stop further captions being recorded and stored, or do the new boolean preferences on th about config page achieve that? Secondly, where is the captions data stored in Firefox, and how may it be deleted? If I could not stop it from being collected and stored, I could perhaps set up a custom deletion in privacy software periodically to delete the records. I am aware that the tiles can be deleted individually, but there appears to be an endless supply of them, and so I need to delete them all together, and also automate the process of deleting furhter captions if I cannot stop Firefox from storing this data.