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Everytime I close and reopen firefox, my themes and add-ons are gone and I need to re-install them.

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To be more specific, my chosen custom theme will be deleted, buttons for add-ons such as "white on black" will have to be added again, and settings such as the preference to save downloads on my desktop instead of a "Downloads" folder will be reset to the latter.

Also, when I reopen the browser, I get the Firefox Start Page, as I have specified, but I also get other tabs such as the homepages for greasemonkey and userstyles.org.

Please do help me if you can, I need a solution. I choose a theme that changes the entire skin to black because I work on the PC for long hours, and I need dark colours to help my eyes cope with the stress. It's going to be a massive strain if I have to re-install the theme everytime I close and reopen the browser.

To be more specific, my chosen custom theme will be deleted, buttons for add-ons such as "white on black" will have to be added again, and settings such as the preference to save downloads on my desktop instead of a "Downloads" folder will be reset to the latter. Also, when I reopen the browser, I get the Firefox Start Page, as I have specified, but I also get other tabs such as the homepages for greasemonkey and userstyles.org. Please do help me if you can, I need a solution. I choose a theme that changes the entire skin to black because I work on the PC for long hours, and I need dark colours to help my eyes cope with the stress. It's going to be a massive strain if I have to re-install the theme everytime I close and reopen the browser.

All Replies (4)

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can i know from where you have downloaded the themes. get them using personas: www.persona.com

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I've tried that, but the problem persists.

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Delete the files extensions.* (e.g. extensions.sqlite, extensions.ini, extensions.cache) and compatibility.ini in the Firefox profile folder to reset the extensions registry.

[[ https://support.mozilla.org/kb/Profiles | ]]

New files will be created when required.

See "Corrupt extension files":

  [[ http://kb.mozillazine.org/Unable_to_install_themes_or_extensions]] 

[[ https://support.mozilla.org/kb/Unable+to+install+add-ons ]]

If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the Tools button at the left side of the Search Bar (or click the "Find Updates" button in older Firefox versions) to check if there is a compatibility update available.

If this hasn't helped then also try to delete the addons.sqlite file.

If you do not keep changes after a restart then also see:

[[ http://kb.mozillazine.org/Preferences_not_saved]]

Modified by Amit Kumar Thakur

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Which security software (firewall, anti-virus) do you have?


It is possible that there is a problem with the file(s) that store the extensions registry.

Delete the files extensions.* (e.g. extensions.sqlite, extensions.ini, extensions.cache) and compatibility.ini in the Firefox profile folder to reset the extensions registry.

New files will be created when required.

See "Corrupt extension files":

If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the Tools button at the left side of the Search Bar (or click the "Find Updates" button in older Firefox versions) to check if there is a compatibility update available.

If this hasn't helped then also try to delete the addons.sqlite file.