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Trying to make Firefox my default browser

Dear Sir/Madam Hi I live in Iran and I use the lovely FireFox browser for many years I have got in the trouble with Logins and Passwords on my browser. Last day, when I was working with my laptop while the Firefox browser, the Acrobat Reader DC and a text document were on the background suddenly I had to restart my laptop. after that, when I wanted to use the FireFox, I found out that all of the saved logins got lost and now there is no saved logins on my browser. I logged in my FireFox account again to recover the lost information, but unfortunately that was useless.

I have many important saved logins and passwords on my browser. Is there any solution? I need your help to solve this issue.

there is an screen of the empty list of Logins and Passwords on my browser.

yours sincerely

If I want to read a Pocket article, it asks me to sign in to Firefox. When I put in my user name, it does not advance beyond this page: https://accounts.firefox.com/oauth/signin?client_id= . . . I'm guessing that it may be allowing cookies, but it looks like cookies for Firefox and Mozilla are being allowed. Can you assist so I can save a Pocket story?

When filling out forms in Firefox, it offers to autofill everything - first, middle, and last name, home address, credit card info, just now it even showed it has my social security number. When I go into Settings/Privacy & Security/Forms and Autofill, and click to view Saved Addresses/Saved Credit Cards, there are no entries to edit or remove. Why does Firefox have this info saved, and how can I remove it?

Is spell-checking done locally on my computer, or is it done on the Mozilla website? I just found out that the Chrome and Edge browsers send my typed message to the home office, and that is where the spell-checking is done. Can I assume that this process is done locally on my own computer with Firefox?

I've been paranoid about security for many years, and every little bit of info I can add to my personal well-being lets me sleep that much better at night.

I am currently 82 years of age and have been using Firefox since it first became available, just because of its advertised security features. Quite happy with it and hope it stays on top of my needs.

And I have the same question regarding Thunderbird and its security properties.

Thank you.

Bob ([removed email from public support forum])

What are the risks of playing or allowing DRM CONTENT to be played on your DEVICE. I have not allowed it have read something months ago that alarmed me but I do NOT recall. Thanks for any UNBIASED INSIGHT YOU CAN PROVIDE.

How is it possible that such a glaring design error still exists after so many have asked for so long?

And to those commenting completely incorrect and unhelpful steps that lead to menus that don’t exist in the settings, WHY?

I’m bout to go back to safari. I love everything Firefox stands for but this is such a glaring oversight I can’t help but wonder what else is being missed.

Where is my security option under settings. There is no option either for privacy either, Why. Also under settings browsing history is suppose to be deleted and it is not Why? Please help me with this matter and keeping my account secure and safe

GOD BLESS FOR ALL YOUR WORK AND EXPERTISE WHICH IS A BLESSING TO US ALL. I AM DISABLE WITH LITTLE INCOME BUT IF THAT CHANGES I WILL CONTRIBUTE TO FIREFOX BUT FOR NOW ALL I CAN DO IS PRAY AS I DO FOR YOU ALL THANK YOU FOR YOU HELP REGARDING THESE MATTERS

BLESSINGS TO YOU AND YOURS SINCERELY MS. GALE

Secure Connection Failed

An error occurred during a connection to app. You are attempting to import a cert with the same issuer/serial as an existing cert, but that is not the same cert.

Error code: SEC_ERROR_REUSED_ISSUER_AND_SERIAL

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

Mozilla's issue, as the Chrome is working perfect.

Certificate Dropa Sep 20, 2023, 8:55:35 AM

You don't indicate what or where this certificate is coming from for any forum user to know what is happening or why it's not being recognized by the browser.

I started getting screen flashes and then identifying pop up windows that go to adform dot com addresses, that are blocked on my computer so nothing other than a error shows up. Its annoying and random. I have checked security page and it says Block pop-up windows and this is blocked. Two exemptions are there which are acceptable. I have run virus checks on Bitdefender and Malwarebytes (Latest versions update) nothing is reported. - What is causing this and how do I stop it? After opening up the hidden window that flashes it tries different pages all fail then eventually the pop up window closes on its own.

Using latest version of Firefox browser 117.0.1 (64 bit) Don't get the pop ups on Google Chrome.

I tried to connect to a website and I received the message in the subject. I have been connecting to that web site for months on Firefox with no trouble. I connected without problems using Firefox just yesterday. After the Firefox problem, I connected without problems to the same web address using Microsoft Edge. I don't understand why Firefox suddenly has this problem.

I don't know if this is a system wide iOS issue or something specific to Firefox, but I'm not able to disable link preview when long pressing a link. I was able to disable it in Safari which also disabled it in iMessage, but link previews are still showing up in Firefox and Firefox Focus. It's very surprising for a browser focused on privacy and security. I should not have to make a connection to another server in order to see the URL behind a link. Automatically downloading from an unknown URL opens my device up to zero day exploits and privacy violations. Does anyone know how to disable this completely or submit a bug report to Firefox?

/edit: moved thread from (desktop) Firefox to Firefox for iOS section.

HTTP/3 doesn't work regardless of my config:

network.http.http3.enable = true network.dns.httpssvc.http3_fast_fallback_timeout = 0 network.http.http3.priority = true

and https://cloudflare-quic.com/ and console still show I'm using HTTP/2. Tried on Firefox nightly and chromium (chromium works fine but firefox doesn't.)

Firefox for Android allows you to register WebAuthn credentials and save them to "this device". You can test this at https://webauthn.io/ . However, I have not been able to find a way to view or remove those credentials saved to "this device". What is the location of where those credentials are saved, and how do I remove them?

Note that these credentials are not visible in Settings > Logins and passwords > Saved logins. That section seems to only be for saved passwords and does not include WebAuthn credentials.

I don't use McAfee. I recently downloaded Adobe Reader and it appears it comes with. How do I get rid of these constant pop up messages that appear to come from "Mozilla Firefox"?