[TriLUG] Commercial Linux Help

[Bill Weinel via TriLUG]

Sounds like you probably have a corrupted config in Firefox.

You should be able to 'refresh' the Firefox config from the "More 
Troubleshooting" menu in Firefox.
( Firefox > Help > More Troubleshooting Information > Refresh Firefox 
Button )

The Firefox refresh feature will remove add-ons normally stored inside 
the Firefox profile folder (such as extensions 
<https://addons.mozilla.org/firefox/extensions/> and themes 
<https://support.mozilla.org/en-US/kb/use-themes-change-look-of-firefox>).
Add-ons stored in other locations are not removed (although any modified 
preferences are reset).


    Firefox will save these items:

  * Bookmarks
  * Browsing and download history
  * Passwords
  * Cookies
  * Web form autofill information
  * Personal dictionary


    These items and settings will be removed:

  * Extensions and themes
    <https://support.mozilla.org/en-US/kb/find-and-install-add-ons-add-features-to-firefox>

  * Website permissions
  * Modified preferences
  * Added search engines
    <https://support.mozilla.org/en-US/kb/add-or-remove-search-engine-firefox#w_add-a-search-engine>

  * DOM storage
  * Security certificate
    <https://support.mozilla.org/en-US/kb/secure-website-certificate>
    and device settings
  * Download actions
    <https://support.mozilla.org/en-US/kb/change-firefox-behavior-when-open-file>

  * Toolbar customizations
    <https://support.mozilla.org/en-US/kb/customize-firefox-controls-buttons-and-toolbars>

  * User styles (chrome subfolder containing userChrome and/or
    userContent CSS files
    <https://wikipedia.org/wiki/Cascading_Style_Sheets>, if previously
    created)

Usually the items which are removed can be re-created ...but, be aware 
of the refresh changes done in Firefox if you have something specific 
which needs saving.

You can also review the following Mozilla URL for a more complete 
description on what a Firefox 'refresh' will do:

https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings

All the best,
Bill


On 7/6/25 15:59, Ron Belcher via TriLUG wrote:
>
> Two principle problems right now.  Unsure whether they might be from 
> the same cause.  My recall is that they did not show up at the same time.
> 1> Clicking a link in email opens a new tab in my open Firefox, but it 
> does not display Firefox.  It remains on the Thunderbird screen.
> 2> All the security preferences are lost when Thunderbird is 
> restarted.  I have to reset all of them.
>
> Ubuntu 24.04.2 with Adblock Plus, Firefox 140.02 snap, Thunderbird 
> 128.11.0esr(64 bit)
>
> I have researched the internet and examined some of the advanced 
> preferences.
>     > for #1 I have tried changing 
> network.protocol-handler.warn-external.http and ....httpsto no avail
>     > for   #2 I have found nothing useful.