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Trying to use Thunderbird after break of some years and want to use Proton Mail. Every time I try to set it up I get message 'the certificate 127.0.0.1does not come from trusted source'. Previous experience of Thunderbird was that there were frequent issues like this arising.

Was it a fact or fake story that my information was sold for so much money to companies to what with it? I need the above confirmation so I don't ever attend to this trick next time.

Hi

when i download something from my mozilla private browser and close the browser, the downloaded data automatically disappear from download folder. is it a common feature.

I joined a Microsoft Teams meeting through Firefox on the web on a Linux machine. When I tried to share my entire screen, I was asked if I wanted to share the entire screen in a Firefox pop up which I said yes. Then the "you are sharing your entire screen" came up, the sharing icon was red and the "stop sharing" button was red. See attached image. This all disappeared and reverted to the default state almost instantly.

Teams has a feature to "manage what attendees see manage what attendees see" where the meeting host can preview shared content before making it live.

I am concerned that the meeting owner was able to see my entire shared screen without me even knowing it through this preview.

Can someone help? Microsoft just sends you around in circles and I can't contact Mozilla.

when i log in my mail from pc(thunderbird) it works well,it requests autodiscover request to webserver it works well,but from phone it says(Configuration found this configuration is not trusted we received the configuration for you email server over a connection that isn't as secure as we'd like. this means that these is a tiny chance that someone could have altered it. Could you please double-check the provided configuration to make sure it's as it should be?) and autodiscover request not shown on webserver. can you tell me possible causes? Thanks! Contact: <redacted>@gmail.com

I have telemetry (every checkbox under "Firefox Data Collection and Use") disabled, but noticed that the datareporting/archived directory contains telemetry files. Is this expected, or does this indicate a bug that shows that telemetry is being sent?

The file paths have the format:

<profile dir>/datareporting/archived/2025-09/<unixtimestamp>.<uuid>.main.jsonlz4 <profile dir>/datareporting/archived/2025-09/<unixtimestamp>.<uuid>.events.jsonlz4

Hi,

Please tell me exactly WHAT AI, WHERE that AI is, and EXACTLY what DATA is transmitted, on an option that's enabled BY DEFAULT on Firefox.

"Use AI to suggest tabs and a name for tab groups"

And the same question for ALL other AI features.

There is ZERO transparency on this issue, and I'm mightily disgusted that you feel the need to, by default, force share the EVERY WEBSITE VISITED with a third party AI system.

Regards

D

getting "SYSTEM WARNING" , " McAfee license expired " , " Trojan Detected " popup notifications continually after following a link on Linked In . Windows finds no threat in its quick scan . Popups occur even when Mozilla closed .

I am using Firefox on iPhone (together with DuckDuckGo as my preferred search engine) and I want to configure it in the most secure and reliable way, without running into blocked pages or limited results.

Here’s what I would like step-by-step help with: 1. HTTPS-Only Mode – how to enable this permanently so all sites load securely. 2. Tracking Protection – which level is best for privacy without breaking websites (Standard vs Strict). 3. DuckDuckGo Setup – how to make it my default search engine in Firefox iOS. 4. SafeSearch – how to set it to the best option (Strict, Moderate, or Off) depending on my preference. 5. General Security – any other recommended settings (cookies, history, etc.) to improve private browsing.

My goals are: • Reliable browsing without “HTTP not allowed” errors. • Strong privacy protection. • Smooth experience without unnecessary restrictions.

Could you please guide me step by step on how to set this up correctly?

Thank you in advance for your support!