Firefox Community Forum

Hello,

Since this morning, I haven't been able to access Bsky on my laptop because of a supposed HSTS risk, which means I can't add an exception to visit it. I use Firefox on my Android and going to the mobile version of the website lets me in no problem, so I assume there's an issue with my laptop.

I'd usually wait a few days and let it solve itself but just in case it's something on my end, I'd like to solve it! I'm on 151.0.4 (64-bit), don't use a VPN or an anti-virus, I have a couple of privacy add-ons but they've been here forever and they've never caused a fuss. I can post a screenshot of the error code and the certificate it sends me if it's any help.

I'd appreciate any pointers! Thanks!

Good day! Just this afternoon, I started experiencing some strange behavior in my browser. Google asks me to solve a captcha every 15 minutes, and when I access services like YouTube Music or even Google Calendar, it asks me to enter my browser master password (I have it enabled), even though my Google account password isn't there.

I've updated my IP address three times, and everything works fine on another PC on the same network, as well as on my phone with the same browser.

The window doesn't always appear, but usually two or three times at a time.

I've also noticed a pattern: for example, on YouTube Music, video previews don't load until the window is closed.

I don't know what the issue might be, but updating to the latest version didn't help. This problem practically prevents me from using the browser. What should I do?

Hello, I noticed that when browsing webpages in Firefox, a window periodically appears asking me to confirm a certificate, presumably from a website (roughly called lt3.google). I haven't downloaded anything malicious and I regularly scan my system with an antivirus. Please help and respond. Thanks in advance.

I have used gmail including calendar and contacts with Firefox for 5 years, suddenly contacts and calendar will not open, has a Firefox upgrade caused this problem?

When the VPN is turned On it acts like a dead switch and locks All bookmark toolbar links as well as Search entries stays locked and will not activate? makes FIREFOX dead in the water. (using Brave Search engine) Any advice?

This is the reply I received from Protonmail: They say the latest version of Firefox caused the issue and is happening on other services as well. We have been using FF exclusively for decades and this is frustrating! Are you in fact working to resolve the issue on your end? Thank you.

Mario M. (ProtonMail) Jun 12, 2026, 16:07 GMT+2

Hello,

Thank you for your messages.

Please note that we are aware of this issue, and our developers are looking into providing a fix from our side. However, the latest version of the Firefox browser caused issue on many other services as well, so they are working on resolving it from their side as well.

I have provided your feedback to our development team. You can contact Firefox directly in order to escalate the issue further.

For the moment you can try using keyboard shortcuts such as CTR: + C and CTRL + V. We appreciate your understanding.

If you have any additional questions, feel free to contact us again. Kind regards,

Mario M. Customer Support Proton Mail

Seafortress27 Jun 11, 2026, 21:47 GMT+2

Hello Mario,

I worked with Google AI for more than one hour troubleshooting this:

Opening a support ticket with Proton Mail Support is absolutely the best move. Since we proved that your clipboard works, your mouse works, and a fresh factory installation of Firefox still experiences the bug, the glitch is entirely on their end.

Proton Mail utilizes a heavily customized web text editor to encrypt messages. When their engineering team updates the background code for this text container, it can inadvertently break standard browser right-click paths—especially for Firefox users. [[1](https://www.reddit.com/r/ProtonMail/comments/p6j0tp/cant_copypaste_text_into_body_of_protonmail_email/), [2](https://www.packtpub.com/en-us/learning/tech-news/hackers-claim-to-have-compromised-protonmail-but-protonmail-calls-it-a-hoax-and-failed-extortion-attempt), [3](https://justinharter.com/an-actually-useful-review-of-proton-mail-vs-fastmail-vs-hey/), [4](https://www.reddit.com/r/ProtonMail/comments/p6j0tp/cant_copypaste_text_into_body_of_protonmail_email/)]

📑 What to Tell Proton Support To help their development team pinpoint and fix the bug faster, reply to your open support ticket with these technical details we uncovered:

- Specify the Browser: State clearly that you are running Firefox and that you just performed a full Firefox Profile Refresh (about:support), ruling out corrupt browser files. [[1](https://support.mozilla.org/en-US/questions/1234222)] - Detail the Extensions: Confirm you tested it with all extensions (including ESET and RoboForm) completely disabled, and the issue persisted. - Identify the Core Bug: Explain that the right-click "Paste" option is stripped only when clicking inside the Rich Text email composition body. [[1](https://proton.me/support/composer)] - Mention the Workaround: Note that Drag-and-Drop text injection works perfectly, meaning the editor container can receive data, but its custom context-menu script is failing to display the native "Paste" command. [[1](https://support.mozilla.org/en-US/questions/1234222)] They will likely log this as a known front-end interface bug and patch it in an upcoming web layout deployment. In the meantime, you can rely on the Drag-and-Drop trick or Ctrl + V to smoothly write your emails! [[1](https://connect.mozilla.org/t5/discussions/right-click-paste-suddenly-stopped-working-in-outlook-email/m-p/34927), [2](https://www.reddit.com/r/ProtonMail/comments/p6j0tp/cant_copypaste_text_into_body_of_protonmail_email/)]

Sent with [Proton Mail](https://proton.me/mail/home) secure email.

I decided to switch back to "mainline". Opened Firefox after a while. Got a prompt to change my new tab wallpaper, I said no.

Closed and reopened Firefox. Then my new tab page was besmirched with "soccer" score nonsense.

What hidden/non-obvious setting do I need to change to have ALL of this and ANYTHING EVEN REMOTELY LIKE IT off FOREVER? I will never EVER want ANY suggestions for ANYTHING for the rest of time. I turned everything I could think of, including the labs or whatever off but this still came up.

HOW DO WE NOW " SET CURRENT TABS ON OPENING BROWSER "

YOU ELIMINATED THAT SETTING THE MOST IMPORTANT !!!!!!!!!!!! YOU ELIMINATED THAT SETTING THE MOST IMPORTANT !!!!!!!!!!!!

The new Firefox built-in VPN, rolled out to Australia this week, is not redirecting to the chosen country location.

Despite selecting either US or UK in the country list, websites are still identifying me as located in Australia.

For example, despite VPN being on and US selected, cunard.com still redirects me to my home location of Australia (see https://www.cunard.com/en-au in address bar). Screenshot attached. Other websites similar.

The master password should either pop up right away, or not pop up at all until sensitive information will be accessed. It sometimes pops up on a delay, which is annoying, as I may already be typing something into the URL bar only to find that the second half of what I typed is now into the master password entry.

During this time of delay, I am apparently still able to access web browser functionality. This creates inconsistent protection and makes me question what the master password is protecting. I thought I would only have to enter it before autofill, but entering it at startup implies it protects the entire functionality of the web browser, not just passwords.

But, if it protects the entire functionality of the web browser, then why does it pop up after a delay, which is sometimes long enough for me to have already started to use the browser, meaning that, if my operating system account is shared but my browser is private, someone already could've made a social media post in my name in the time before they are required to enter the master password, if they are fast enough.

Really think about your intention and please establish or make clear your philosophy with this confusing and annoying design choice. Is there a way to either stop the delay, or to make it only pop up when accessing autofill functionality, or to make the browser entirely inaccessible until the pop-up grabs focus?

I have firefox on another PC with wallpaper I wish to install on my current firefox. I have identified its name = "Abstract". The wallpaper image url is https://firefox-settings-attachments.cdn.mozilla.net/main-workspace/newtab-wallpapers-v2/a205885e-194a-41f9-ae47-e7da66a74041.avif. The image is a205885e-194a-41f9-ae47-e7da66a74041.avif The current firefox version I wish to install this wallpaper on is 151.0.4 (64-bit) Please provide navigation instructions on firefox to install. I am uploading the image of this wallpaper for you easy reference. Thanks

Hello,

I am trying to change the idiom of Mozilla since september and I can´t do it. I is a computer of the department of education of the Basque Country, and I would like to change it to Basque.

I attach the capture photo of the scene.

Thank you.

Hello, I am experiencing an issue where the built-in Firefox VPN feature has completely disappeared from my browser interface. I cannot see the icon on the toolbar, and the feature is not active. Could you please clarify if this feature has been geo-restricted or temporarily disabled for certain regions, or if there is another hidden preference I need to modify to restore it? Thank you for your assistance.

This started recently, maybe with a recent Firefox upgrade.

Normally, when you start typing in the Address Bar of a Firefox Window, a dropdown list of suggestions appears. Very helpful.

However, NOW, the dropdown list covers up the Address Bar so I can't see what I'm typing. I can still type, and what I type goes properly into the Address Bar, only I cannot see it. (See attached screensnatch.)

Do I have a switch in the wrong position, or is this a bug?

--Gil

(I'm on 151.0.4 (aarch64), running under macOS Sequoia 15.7.3 on a MacBook Air M1, 2020.)

I have successfully posted a question, and I figured out how to view my post (GilDawson -> View Profile -> My Questions). However, I notice that my screensnatch does not appear with my posting! It is important to illustrate my problem, and I was careful in uploading it, yet I cannot find it and I cannot figure out how to update my post.

Firefox is up to date, Windows 11.

I frequently watch BBC videos but approx one week ago, they stopped playing. I have your VPN which is usually off as it give me no advantage, (this appeared following the last update), but I've tried switching on and changing to UK location. No change.

Can you give me some suggestions please?