Firefox Community Forum

There was nothing wrong everything was running perfect and smooth but then out of nowhere my youtube froze and I couldn't press anything on youtube tab, I could still close it or press the buttons on the sides/corners but on the youtube, it also doesn't refresh, this only happens on youtube and only on firefox when on other browsers, yes I unchecked hardware acceleration, I restarted my firefox many times, I cleared the cache, today I turned my adblockers too, i thought it turned into how it was before but then it froze again and now I couldn't even see youtube it was just black screen on that tab, like what do I do here, do I switch browsers? It eventually starts playing again after I wait for some minutes but I don't want that, I want it to work like how it did before this happened. Why did it even happen?!

Just enquiring if anyone else is experiencing problems upload things through Firefox Nightly. I first noticed it around a week ago. I was using ChatGPT and uploading images, drag and drop, and I could get one or two to work, after that, the uploading buffer wheel would freeze. Completley clearing the cache would fox the issue, but it would reappear after one or two uploads again. Same issue, uploading to Grok. Today I tried uploading a couple of images to the The Movie Database, and again, same issue. If I switch to Chrome, no problems. If I use Edge, No problems. Funnily enough, when the issue presented today and I tried to post here, I got locked on the Fastly Client Challenge and had to use Chrome to post here. (I don't know if thats related, but squirrely either way) I have reported the issue on Bugzilla, but just wanted to know if anyone else has this issue. Thanks in Advance. Oz.

Over the past week or so, I've been finding that Youtube videos don't start from the very beginning - the very opening is missing.

So as examples, you're playing a song that you know starts directly on a beat, but that first beat gets missed, or there will be an opening sentence such as "Everybody is talking about the latest... " and what you hear is more like "Vrybody" - you can clearly hear that It's slightly off.

This relates to Firefox in three ways.

My initial thought was that there is some conflict with using an Adblocker (uBlock in my case) as Youtube is trying to force a pre-video ad that won't play, but even with the adblocker disabled the problem persists.

I then cleared my Firefox Youtube history so it loads as a completely fresh version - but the problem is still there.

Finally, I tried the same video on Chrome to see if this is definitely a Youtube issue...and it plays correctly without a problem.

Therefore, the problem seems confined to Firefox but I am unsure where - what setting needs to get tweaked to sort this out?

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

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.

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

Firefox 152.0, latest Windows 11 25H2 update on HP TP01-1036. I have tried just about all the AI fix suggestions but nothing works to fix the following problem:

When viewing the Yahoo.com News page, I scroll vertically down to see each article...one after the other. When I come to an article I want to read, I left click it. The article opens within the present tab and is closed by clicking the red "X " at the upper right hand corner of the article; which in turn, returns me to were I was before opening the article. However, eventually, after a few articles are read, when closing an article, the cursor will jump back to the page's first article instead of bringing me back to where I left off on vertical arrangement of the news articles'? This has been happening for around the last one to two weeks. Nothing else seems to be out of wack.

I get an "access denied" message when I do a search within a web site that I am connected to. Problem is with Fire Fox. Do not have the problem with google chrome.

on some sites, when I try to sign in I have entered my login information, but when I hit enter or submit for instance bigfishgames.com nothing happens. When I am on my Drs portal after I have entered pages of information and hit submit, again it does not get accepted. Soooo, I have to leave firefox and go to a different browser. Any help would be greatly appreciated, it is very frustrating when this happens. It is so frustrating that even though I have been on Firefox for many years I am thinking about using a different browser.

recent firefox update can no longer copy and paste when creating a blog post in Squarespace, I have been using squarespace for around 15 years for my websites and I have never seen this issue, Firefox 15.1 installed and all of a sudden when trying to create a blog post in Squarespace, when I right click a text box pop up and it no longer says paste so I can no longer copy and paste text - this is more than a little annoying, you will not be surprised to know that I am now using Chrome to create my posts, there is no issue in chrome. I am a firefox geek! how can i solve this problem, I just did another update from Firefox, the issue remains I have been using computers for 40 year so I am not a novice but software glitches, I am lost

If I upload a jpg image via the + in the Gemini prompt it fails with an ! or doesn't give the (up pointing arrow) execute option prompt. Do usual things and even clean installed Firefox. Same on 3 windows 11 PCs 2 of which not my own hence not configured the same. All did work until latest updates. No browser extensions antivirus temporarily turned off. Same in, private and safe mode. All work fine on Chrome or Edge (sorry to swear at you) A work around is to load them via Google Drive or Photo and pull them from Google platform.

Starting on June 9 2026 my Rockland Trust banking website will not open also other bank websites not opening or take several minutes to open, also other websites not opening. All these websites opened before June 9 2026. I have done all the recommended steps even uninstalling an reinstalling Firefox. What did Firefox do, as I had made no changes. I can open all these websites on other browsers, Google Chrome, Microsoft Edge, etc. I want to keep using Firefox but I can't if websites won't open. Clare O'Brien

Hallo Firefox Community, ich habe seit 2 Wochen das Problem, dass ich mich mit Firefox nicht mehr auf bestimmten Seiten einloggen kann bzw. die Seiten sich bei der Anmeldung nicht mehr laden. Z.B. bei Klarna komme ich nicht mehr in meinen Account. Mein PC läuft mit Win7 Prof. SP1, das letzte Update von Mozilla lautet: Firefox 115.36.0esr (20260514164700) Details Installiert am: 20. Mai 2026 um 13:41:44 Status: Das Update wurde erfolgreich installiert

Hoffe hier hat jemand eine Erklärung dafür. Ich bin auf mein Firefox angewiesen, verwende den Browser schon eine halbe Ewigkeit. Möchte ungern auf einen anderen Browser wechseln.

Danke an alle!

Unable to upload any images to Gemini. Working fine on all other browsers. Images always fail unless security levels set at lowest. When the do upload the action button does not become active

Content Security policy blocks essential scripts no matter what I do.

It's new Firefox installation, Troubleshoot mode, Enhanced tracking disabled, I'm not on VPN, can log into X.com in another browser just fine.

It's the reason #1 I don't use Firefox. I thought the issue would be fixed but it has been like this for long time.

Yet whatever I do, whatever I turn off this pops up:

Content-Security-Policy: The page’s settings blocked the loading of a resource (default-src) at https://abs.twimg.com/responsive-web/client-web/bundle.Conversation.721fc4aa.js because it violates the following directive: “default-src 'self'”

The screenshot is from Zen, but it uses Firefox and the issue is the same in Firefox.

I use WhatsApp web with Firefox 151.0.3 on a Macbook Air. In WhatsApp web, you should be able to emoji over a message sent by someone else. One clicks on the smile icon at the side of the message, the emoji pallet appear above and select one of a handful of emojis. Since a recent update, the pallet no longer opens. It's just white space, the cursor does not change allowing you to pick one of the emojis. See screenshot. Is there a fix for this please?