I-Firefox Community Forum

Windows 10, Firefox v152.0: I'm logged in to my account with fidelity.com and visiting a page to get information about an ETF: https://digital.fidelity.com/prgw/digital/research/quote/dashboard/composition?symbol=XXXX (XXXX being any valid ticker symbol; makes no difference what) The information is organized within the page with a set of sub-tabs (?): Overview Chart+ Composition .... (+ 6 more) Much of the information displays normally, EXCEPT: Under "Composition": "not currently available" Under "Distributions & Expenses": "not currently available" Under "Performance & Risk": there are two sections, but only one of them displays normally Under "Statistics": three sections, only one displays normally; the other two "not currently available" (see attached image) I've checked with Fidelity support, and they verified no issues at their end--identified as a browser issue since the site doesn't have this problem using MS Edge I've cleared the cache, I've turned off enhanced tracking protection, I've temporarily enabled all scripts (NoScript extension)... none of these actions helps FWIW, I also enable Privacy Badger and Malwarebytes Browser Guard, but neither claims to be blocking anything

I just updated Firefox to version 152. Now my bookmarks toolbar is broken. Can't open any site from that toolbar. Also,, the pinned sites and folders are scrambled one over the other on the left (see picture).

I need 2 logins for a website Login 1 : For www.example.org/ with user@some.url and Password1 Login 2 : For www.example.org/otherdir/ with otheruser@other.url and Password2

Now Firefox 140 keeps deleting the subdirectory /otherdir/ when storing the Login2 and merges the logins with whatever was given second. Login 2 is not possible. Login 1 gets corrupted.

This is a bug.

Firefox is updating 2-4 x/month while in use and has to be restarted. But my setting is on "Check for updates, but choose when to install". The last update recorded is listed as February 2026. So what gives? Thanks

how do i now set current tabs

Your new system doesn't allow us to SET CURRENT TABS ON OPENING BROWSER

THIS IS THE MOST IMPORTANT SETTING, BY FAR !!!!

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.

after last update stop working .if I use ctrl v it will paste in. When i try using the mouse it doesn't have paste in the block that pops up.

I can click and paste in the condition box but not the description box.

If I use edge it works. I don't want to use edge

I have also cleared cookies and cache

When using Firefox on my Apple computer I keep getting this message" Secure Connection Failed

The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. What can you do about it?

The issue is most likely with the website, and there is nothing you can do to resolve it. You can notify the website’s administrator about the problem."

This happens even when I try to get to Mozilla.org!!

I'd never seen a Windows Security prompt when attempting to view saved passwords before, so I was confused when I saw it for the first time recently. I have a primary password set within Firefox, and I never enabled "Require device sign in to manage passwords" in settings. I also cannot disable this setting without entering my Windows password.

I was alarmed that this may be a malware symptom, as I'd recently connected to a new public wifi network. Is it a known issue for this setting to become enabled by itself? At the time of this issue, I was running 150.0.3. I have since updated to 152.

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?