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I'm running a UI deployment with a web-app and Firefox on an Ubuntu system.

I'm running Firefox with the flag "--kiosk" to place it into kiosk mode (booted from the command line upon system boot). This works fine, and boots up Firefox to the page I want (my web-app) in kiosk mode (full-screen, etc.)

However, I get very annoying popups that are not acceptable for deployments in front of customers. I have tried, but CANNOT suppress all of them, or, when I thought I did, they came back a month later.

Popups:

1. "Keep pesky trackers off your tail. Open my links with Firefox" 2. "Welcome back" 3. Others like this...

These are Firefox browser popups, not related to popups that other websites can put up, and block the entire screen with an overlay until they are dismissed. My deployments are only going to a single web-page that I control (which has no popups) and there is no keyboard on the deployed system, so people cannot navigate elsewhere.

Things I've tried:

1. Firefox is installed via snap, which provides "snapshotting" configuration for the Firefox snap. I loaded Firefox, cleared the annoying dialogs, and then took a snapshot (theorying that I set Firefox configuration when doing this, and I capture that in the snapshot) and re-installed it onto a new system. Still go popups 2. Looked into user.js preferences. I can install this file onto the system, so I looked through https://searchfox.org/mozilla-release/source/remote/shared/RecommendedPreferences.sys.mjs and this is how I initially got all the popups to disable themselves. I looked through that list and tested most of the recommended settings until the popups disappeared. However, after a month or so, I'm beginning to see the popups again.

Any suggestions from Mozilla or others that run into this issue?

I already found many users asking the same, but they didn't get a reply.... at least I didn't see any.

I want to protect my password memory with a master password - fine. But in 99% of my time, I don't need to enter login data. Even worse, if FF starts on an "invisible" monitor, I cannot move the window.

Is there a way to have FF prompt only for the password if I attempt to log into a site ? ... it already does that when I cancel the start-up prompt.... so is there an "auto cancel at startup ?"

Some email clients allow the user to change the subject line on an incomng email. I had a client where I could edit the subject line and then store the email in another directory. Changing the subject line allowed for a better way to find the email later on as one can change the text to something understandable and easier to seach for. Can this be done in Thunderbird or is this for the wish list? Cheers Bob

Sometimes all add-ons / extensions break randomly and are disabled (the icon of the extensions is also broken under "Manage Your Extensions").

The extensions are visible under "about:addons", but the slider is turned off and the icon in front of each extension is broken / empty.

It seems that deleting these 2 files- compatibility.ini and extensions.json inside the firefox profile folder, usually fixes the issue. Only these 2 files though, don't delete anything else.

No need to mess around with the ff profiles or anything else, just deleting those 2 files and restarting the firefox usually fixes the issue with the "unregistered" addons.

This thread is for the search function, as I found some VERY old and outdated suggestions for the aforementioned issue using the search function.

I wonder what causes the extensions to "unregister" randomly.

I turned off junk mail filtering and am glad I did. I don't get that much junk, and so I just mark it all in the inbox. What I don't have to do now is restore all the messages from a couple of listserves I'm on that Thunderbird insists on moving to junk - not every mail from these listerves, just some. There is nothing weird in the subject, I have the addresses in my address book, I'm constantly marking them as not junk, and it still insists on sending them to junk - sometimes.

But why doesn't it work properly? Why is it so wrong so much of the time?

After upgrading to SuperNova on my MacBook Pro, the Mail Merge function no longer is available under "File". I looked under Tools to see if I needed to reinstall the Mail Merge Add On, and the Add On feature is also missing.

I found a discussion where someone said to download some debugging file, and to do that, you had to look under the options (three vertical dots) next to the Unified Folders Inbox. However, my Unified Folder Inbox does not have three vertical dots.

Holding emails that need to go out to multiple recipients. )-:

Thank you.

RD

I normally open messages in tabs under exactly one circumstance: when I right-click on a message and explicitly open it in a tab.

I've found that (until I changed the handling of PDFs to "Save file") any PDFs that opened using Thunderbird's preview function would reopen if I closed and relaunched Thunderbird. This is not desired behavior.

I will also note that if I open Settings, it opens in a tab, rather than a separate window. This is neither expected nor desired (and my natural reaction is to click the close button on the window, closing Thunderbird, because "Settings" is something I expect to be in a window, not a tab. And that, too, reopens if I reopen Thunderbird.

And worst of all, those tabs that shouldn't be reopening at all are reopening in front of the main tab.

There was an extension called "Thunderbird-DontRestoreTabs," that would do exactly what I want, but that was made obsolete when the underlying extension technology was deprecated, so it is of no use in 115.9.0.

I frequently attempt to open news articles or other pages requiring form fill-in but instead get a page that advises me to disable an adblocker. I have no idea what Firefox (yes, up-to-date) uses or how I could set it to allow pop-ups for a particular site. Help!

remove ad blockers even though I already have removed them.

printer is not recognized as being online although my other devices don't have the problem. i use Firefox on all devices

I have to put my face within inches of the screen and strain to see the text in Firefox browser menus, tabs, and search bars. How do I adjust the font size?

I'm not a programmer. If I need to enter code please be pedantic about descriptions of how to do that.

To open a link of a website in the background tab is CTRL+click, why is it that to open a bookmark of the bookmark toolbar in the background tab is CTRL+shift+click. It is confusing! A bookmark is a link! For comparison, both of them are CTRL + click in chromium. BTW, there is no explanation in advanced configuration preferences.

Hello,

i'm currently trying to set the font 'Aptos' in thunderbird 115.9.0 to the default font for writing e-mails.

I do know that there is an option to configure this under 'settings -> writing -> html-options -> font' but when i try to change this i seem unable to find the font Aptos in this list. I do however have other programs installed on my computer, that already use this font. How can i get and set this specific font in thunderbird?

Kind regards RedPanda

It seems a while back I saw instructions describing how to change the location of folders in the left column of Thunderbird. Specifically how to move the news feed folders above the inbox folder. How do I do that?

Happy to provide any more needed info.

JC