Firefox Community Forum

Good day,

I'm using Selenium with Firefox in Python to automate browser testing, but I keep encountering captchas that prevent my script from proceeding. Additionally, I receive an error stating that "the browser is being automated" (Reason: Marionette).

My intended automation flow:

1. Open Firefox
2. Go to www.google.com
3. Search for "YouTube"
4. Click on the YouTube link
5. Search for a video
6. Play the video

However, captchas appear during the process, and I suspect it's because Firefox detects that it's automated. Is there a way to disable automation detection in Firefox or configure Marionette to reduce captchas when using Selenium in Python?

Any guidance or workarounds would be greatly appreciated.

Thank you!

I am a designer of Systems for Sustainability and Renewable Energy. I am receiving the message "HTML5:Video file not found" when trying to watch videos online which is stopping me from viewing a lot of new video content.

Can I / How do I resolve this situation?

Hello, when I browse the internet, randomly the certificates seem to break as I get https certificates for sites that seem to have nothing to do with the sites that i intend to visit. Then errors like the ones in the screenshots appear. Usually reloading the website helps and then the certificate displayed seems to be correct. I did make sure to upgrade to the latest version of FF (136.0) and I did clear all cookies, but it didnt help. I do not really have any idea where to start searching or what might cause this, tia for help. kind regards Thomas

Dear Sir or Madam: I seem to have a compatibility problem with my firefox browser. Not always, but often, I get a 502 error when I try to log in to my bank account. After contacting my bank, I found out that their program is not compatible with firefox and that I should use Google, which choose to avoid. Is there a patch or fix that can get rid of the 502 error and allow me to continue using Firefox, which I have used for almost twenty years. I don't want to switch to Google, EVER! Please let me know what options I might Have.

Respectivly, Louis Osip

Secure Connection Failed

An error occurred during a connection to twms.dc3n.navy.mil. The Certifying Authority for this certificate is not permitted to issue a certificate with this name.

Error code: SEC_ERROR_CERT_NOT_IN_NAME_SPACE

   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.

Learn more…

Am unable to connect to onlinebanking.mynycb.com with Firefox but was able to connect with Microsoft Edge. Firefox msg. "Warning: Potential Security Risk Ahead" Seems like a bug in Firefox.

error message:

Firefox Can’t Open This Page

To protect your security, vimeo.com will not allow Firefox to display the page if another site has embedded it. To see this page, you need to open it in a new window.

Learn more…

Report errors like this to help Mozilla identify and block malicious sites

I can't access my company website via Firefox for some reason. Very odd... This just started happening today. http://www.buckaroo.tv/

Error 530

Site is frozen

The page could not be loaded properly.

I am sure this is well known, but I could not find any reference to it.

Get this on various sites, but one it TUBITV.COM. One video file was ABOVE THE LAW and attempt to access gets a "Digital Rights Management (DRM) Error" (see atch).

Is this going to be fixed anytime soon? (Or is there something I need to do?)

Thank you.

Mozilla is giving a security warning when I am attempting to download and view messages known to be valid and safe but are caught by a 3rd party spam program and placed in quarantine status.

I have used this account for several years and now I cannot sign on to it?????

Secure Connection Failed

An error occurred during a connection to www.amazon.com. PR_END_OF_FILE_ERROR

Error code: PR_END_OF_FILE_ERROR

   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.

Learn more…

I have never had a problem opening my email client before in Firefox, but now after the last time I started my computer I get this message when I try to open my email client (Shaw Webmail):

400 Bad Request Request Header Or Cookie Too Large nginx/1.24.0

Oddly though, it will open if I go into the Incognito window. Why is this happening and how can I fix it so I don't have to constantly into Incognito mode to access it?

Secure Connection Failed

An error occurred during a connection to www.mediafire.com. PR_CONNECT_RESET_ERROR

Error code: PR_CONNECT_RESET_ERROR

   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.

Learn more…

NOTE - I am using Firefox on my PC which is working fine. Issue is with my laptop Firefox.

Firefox was working fine, on my laptop and PC, until about 3 days ago. Started getting Tried to download various versions of Firefox. I am using Firefox on my PC with the same exact settings, network, Win 11 and Antivirus as my laptop. Firefox, version 128.6.0esr (64-bit) works fine on my PC, but does NOT on my laptop. I uninstalled FF and reinstalled it, changes Firewall to Windows on the laptop from my AV, NOTHING. Driving me crazy. HELP please.

Message below (on ANY and ALL websites) and screenshots attached.

Secure Connection Failed An error occurred during a connection to amazon.com. PR_CONNECT_RESET_ERROR Error code: PR_CONNECT_RESET_ERROR 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.

I am being prevented to access any sites I need just because they require some personal data from me. After the initial Norton (1). The message I receive -

Secure Connection Failed

An error occurred during a connection to geropoless.cc. PR_CONNECT_RESET_ERROR

Error code: PR_CONNECT_RESET_ERROR

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

(1) Norton prevents acess saying Dangerous web page, threat category URL : phishing I take the more options and indicate faulse reporting then as above !!!

Unable to connect

Firefox can’t establish a connection to the server at 127.0.0.1:8080.

   The site could be temporarily unavailable or too busy. Try again in a few moments.
   If you are unable to load any pages, check your computer’s network connection.
   If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the web.

HOW TO CONNECT

I went to work and when I returned a new router was installed and ever since I get errors on almost all sites I visit. It is the potential security issue, requires secure connection and when I look into the info it says the certificate is being denied because it is self signed. And anytime I go to hit learn more I receive a 400 error and cannot continue. I am also unable to update apps I have on my pc or connect to the internet using anything besides a browser. I get the same kind of error on edge as well as Firefox.

I have already set things up so I am using no proxy and I do not have https only mode enabled.

The only constant is that I can open YouTube and watch videos. I thought this meant it was a dns issue but I have tried several fixes for dns issues and they didn't work.

I would attach photos of the error but Mozilla is also unable to open due to the errors so I'm filling this out on mobile.