Firefox Community Forum

Hi, I've been receiving the following rejection message as follows: jino.ru rejected your message to the following email addresses:

postmaster@pop3-server-spam.org The address you sent your message to wasn't found at the destination domain. It might be misspelled or it might not exist. Try to fix the problem by doing one or more of the following:

   Send the message again, but before you do, delete and retype the address. If your email program automatically suggests an address to use, don't select it.
   Clear the recipient AutoComplete cache in your email program by following the steps in this article: Status code 5.1.1. Then resend the message, but before you do, be sure to delete and retype the address.
   Contact the recipient by some other means (by phone, for example) to confirm you're using the right address. Ask them if they've set up an email forwarding rule that could be forwarding your message to an incorrect address.

The sender of the email gets those message. I get them also but I'm also getting the message that they send me. It's only doing it with my outlook account. Why is that? I checked it directly on the Outlook website and everything is OK. I can't understand why this is happening.

I created a new iframe and added a new value in its contentWindow, and changed the src of the iframe like below.

``` (() => {

 const frame = document.createElement('iframe');
 document.body.appendChild(frame);
 frame.contentWindow.testASDF = 'TEST_VAR';
 frame.src = 'http://localhost:5500/test/iframe.html';

 setTimeout(() => console.log('testASDF: ', frame.contentWindow.testASDF), 3000); // I expect 'undefined', but 'TEST_VAR' printed.

})(); ```

I thought the 'testASDF' value would be gone after the iframe loaded the new src, but the value I set remaining even after the iframe loaded anew. In Chrome, it's not reproduced.

It only happens when I set a same-origin iframe src and modify the src synchronously with the line above. For example, the script below doesn't reproduce the problem.

``` (async () => {

 const sleep = (ms) => new Promise((res) => setTimeout(res, ms));

 const frame = document.createElement('iframe');
 document.body.appendChild(frame);
 frame.contentWindow.testASDF = 'TEST_VAR';
 await sleep(1); // asynchronous routine added
 frame.src = 'http://localhost:5500/test/test.html';

 setTimeout(() => console.log('testASDF: ', frame.contentWindow.testASDF), 3000);

})(); ```

Is this a bug or optimization of Firefox?

UA: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:137.0) Gecko/20100101 Firefox/137.0

I use Xero accounting software and used to be able to view pdf within the software up until the recent update. Now it just sits with a spinning wheel. I've found that if I change the setting within Firefox to open the pdf within Firefox the issue is fixed in Xero. But then all pdf's open in Firefox instead of the usual Adobe. This breaks other workflows within my organisation as I need to email the pdf straight away when I download it, so my Windows was set with Adobe as the default for opening pdf's but now Firefox has taken that over. There does not appear to be any way to email the pdf from Firefox other than to save it and then find the file and email it from there which is very time consuming. I don't know what has changed in Firefox, but please can you fix it. I see I'm not the only person with this issue.

I keep getting a pop-up for"sign documents online" in my Firefox browser. Several others have reported the same. It overlays the browser content so I can't use Firefox at all. My only option seems to be to uninstall Firefox and use a different browser. Is there a fix?

Over the past couple weeks of updates, the about:processes page is now missing several elements, such as the memory usage, CPU usage, and the close (X) button for each process/tab. See attached screenshot. Normally each row would show the memory, cpu, and if it's a closeable tab, the X button would be on the far right upon hover.

Browser: Firefox Developer Edition 135.0b3 64-bit, build 20250110123854 OS: Windows 10 22H2 64-bit (Windows_NT 10.0 19045)

Let me know what other info you need to squash this bug. Thank you!

My account was probably hacked. I noticed this from an email I received from Mozilla. My account was logged in from Africa, which i noticed from the timezone because the email gives literally no detail. I logged into my account to kick them out but i found out i couldnt because the button didnt work. All the other kick buttons worked except the hackers. Mozilla has done nothing other than to email me.

hej, you write oh dear, no print is possible :-((( but you write to me, that I have win10... but it is a new machine with win 11...and firefox does not work, i cant se my mails?!?!!?

I downloaded a PDF and used Firefox to view the file. I'm trying to find key words in the PDF and I always get phrase not found. As a test I inputted a word I found in the document but find in page stated phrase not found. What am I doing wrong? I remember that I have used that feature in the past and it worked.

Hi, I just installed the latest update (I think it's 136.0.2). I guess I skipped some/several versions. Suddenly my main menu isn't workin anymore (clicking it with the mouse, that is) There is some overlay which I can't find out, how to remove. Even the Minimize/Maximize/Close buttons don't have any function. Luckily I can still access the menu via keyboard shortcuts. How can I remove that overlay bar ... or did I catch some malware ?

Is there a way to set a default zoom for the firefox pdf viewer? The Automatic zoom has no toggle, and all pages open up as HUGE and I have to manually choose the zoom %. This is tedious and takes up time as I open many documents a day.

Why when you click on the extensions button (jigsaw puzzle icon) in the toolbar to open the extensions panel the “Personalize Your Firefox” screen appears ???

When you right click a gear icon in a particular extension, the drop down menu has no "pin to tool bar" option, it only shows "copy/select all/print..." options ???

Thnak you.

I have a requirement where instead of showing the 404 error or 503 error on screen, I want to display a blank screen. I have already tried to set the following configs to false -

security.insecure_connection_text.enabled security.insecure_connection_icon.enabled security.insecure_connection_text.pbmode.enabled browser.ssl_override_behavior security.ssl.errorReporting.automatic security.enterprise_roots.enabled security.tls.version.min

Is there anymore steps to do or any userChrome.css script is required.

PS : I cannot use any extension or addon to do that

(Title): VPN is not working on my laptop

(Description):

Hello, I installed a VPN on my laptop, but it is not working. I cannot connect to any servers. I have tried restarting my laptop and reinstalling the VPN, but the problem still exists. How can I fix this issue?

Thank you.