منتدى دعم ”Firefox“

When trying to install any extensions on either the Mozilla Addons website or directly via the Extension settings, it fails to do so.

I've attached a screenshot of the Mozilla Addons website when it fails to install the extension. On some other addons that I've attempted in the past, it just shows the throbber forever.

I have checked the Multiprocess Browser Console and it says that it fails to move the file because it's locked (NS_ERROR_FILE_IS_LOCKED). I have also attached a screenshot of that.

Ever since the update, I have had pink flickers on videos on youtube and twitter. They last for less then a second, so I couldn't grab a screenshot of it. After doing some reading online, I turned off hardware acceleration which turned the pink flicker black and now effects several sections of the web browser.

Recent issue, April 2024. Had version 124 Firefox on Win10 computer and went to Help - > About to have Firefox check for updates. This has worked just fine up until now. The message "Failed to check for updates." is shown in the About screen. I have uninstalled and re-installed Firefox with the same results. Have also un-installed Firefox, un-installed Mozilla Maintenance, then removed Firefox data from App Data folder in user directory, then re-installed with the same results. Also, now when I access a local media server, I keep getting the message "Firefox is installing components needed" and that never goes away. Any ideas?

I am watching a Twitch video on Firefox. When I open a new Firefox tab and drag it to another monitor, the Twitch video skips forwards about a minute.

I also occasionally notice skips or pauses when I switch from one tab in the same window back to the Twitch playing tab.

Is there any way I could fix these problems?

The pinned shortcuts on my newtab page have all disappeared once again. I've gone to about:config > browser.newtabpage.pinned and my shortcuts are all listed. But only blank boxes show up on the page. It will not accept a new entry when I try to enter one. It goes back to the blank white box. Why does this keep happening? Can anyone give me a Firefox for Dummies way to fix this?? Thanks!

Email removed for privacy

Prior to update 125.0.1 corporate intranet users could download PDF files from our Line of Business applications / Webpages. Today after the latest update the PDF files download but are corrupted. The site was added to the trusted webpage without improvement.

Adobe Acrobat Reader could not open ********.pdf because it is either not a supported file or because the file has been damaged

This happens on other websites as well: https://www.exploit-db.com/

Peer’s Certificate issuer is not recognized.

HTTP Strict Transport Security: true HTTP Public Key Pinning: false

Certificate chain:

MIICpzCCAY+gAwIBAgIRAKwGoGQAAAAAmCY0AAAAAAAwDQYJKoZIhvcNAQELBQAw fzELMAkGA1UEBhMCRVMxDzANBgNVBAgMBk1hZHJpZDEPMA0GA1UEBwwGTWFkcmlk MQ4wDAYDVQQKDAVBbGxvdDEOMAwGA1UECwwFQWxsb3QxLjAsBgNVBAMMJWFsbG90 LmNvbS9lbWFpbEFkZHJlc3M9aW5mb0BhbGxvdC5jb20wHhcNMTYxMjE2MTMwNzQ5 WhcNMjYxMjE2MTMwNzQ5WjAdMRswGQYDVQQDDBJ3d3cuZXhwbG9pdC1kYi5jb20w WTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQ6cVWKA7AbHU4bIprcBJJbf5Ggu1m2 l7AKSfxW+qP7yVdufqa0G1QUHSAuRSuSH1gY4BLBkCrF1nSUePkDGiP9o0swSTAd BgNVHREEFjAUghJ3d3cuZXhwbG9pdC1kYi5jb20wHQYDVR0OBBYEFBfx8iCjxST9 q2VG6sjqslEAp5nRMAkGA1UdEwQCMAAwDQYJKoZIhvcNAQELBQADggEBAHgjFO4M jlQprOomfaK474+gLvuhl9h0+CQVzxHOZvM7enfi9AAKX2PmjHLnfh3BFKvHqtHs BImhiOx1eP/1aKMAy/RLDPz/5/rEG6pb9V+s1/ByMRPYjRZycfKgO23FfY2FEiZo 8eWuoELjJw186Zy8Y7IunUdlIKx7C9Bm7alBfd9XJSvJgphYqNsSFqwq1m4sOXf7 R1iFIhC7oFPp209LQ6krOHDSxiB9rkQ0rKkpslvGIClesi7SUm/SDQ1OBESnByD9 IXiNPxRUFMefwQ90F12RMalfWnTjbgNqsJHK/Q0u4cIFDXfx+lJ9/PLq+mtC8IZL HfuPiRKqEguiRso=

MIID3DCCAsSgAwIBAgIBATANBgkqhkiG9w0BAQsFADB/MQswCQYDVQQGEwJFUzEP MA0GA1UECAwGTWFkcmlkMQ8wDQYDVQQHDAZNYWRyaWQxDjAMBgNVBAoMBUFsbG90 MQ4wDAYDVQQLDAVBbGxvdDEuMCwGA1UEAwwlYWxsb3QuY29tL2VtYWlsQWRkcmVz cz1pbmZvQGFsbG90LmNvbTAeFw0xNjEyMTYxMzA3NDlaFw0yNjEyMTYxMzA3NDla MH8xCzAJBgNVBAYTAkVTMQ8wDQYDVQQIDAZNYWRyaWQxDzANBgNVBAcMBk1hZHJp ZDEOMAwGA1UECgwFQWxsb3QxDjAMBgNVBAsMBUFsbG90MS4wLAYDVQQDDCVhbGxv dC5jb20vZW1haWxBZGRyZXNzPWluZm9AYWxsb3QuY29tMIIBIjANBgkqhkiG9w0B AQEFAAOCAQ8AMIIBCgKCAQEAtckdwPaklW7lAUz/jjFnePUeGNG0w9E1ajLq4UZO vol1ESRdiVXJhj43/4NtvFGiw0ujDwh8K5xErtaXx+W+Lk0yw2uXATBtdvr3pdDj cxNjUVYl6iis0lxgKff02fsLHdLvy9hJX08wsBF6NKW9YetM6WznDsWztucfg8a1 QaUxFzwHxKjTaV9+RO1zosUgU6RIZwBJrXnyJPeMdbDeS7+WXIAQT1WlficRckAw 4VX7l90AVXzng+Kf+SErsD0DtOiMS/nawa/0tW6whd6zmSaCtPJg37EBp3BQkpdn RvRCsG9h1aWkBUdFNb0mNbnHDP0dmWrDZEFKNmpeC6LmkQIDAQABo2MwYTAOBgNV HQ8BAf8EBAMCAQYwDwYDVR0TAQH/BAUwAwEB/zAdBgNVHQ4EFgQUqLwqHQ0a0mcp ebqXCx9QL1ibqvcwHwYDVR0jBBgwFoAUqLwqHQ0a0mcpebqXCx9QL1ibqvcwDQYJ KoZIhvcNAQELBQADggEBAHJsGkbv+mGhMHfc5z1UZGsH0rkV0U+tl/6hwutyMHPO tvHCwK30keSqiIz8E0grwkMAiS4Ir1w52hfJB0JndxWv1rBTk5gA5ASruhsNKcgv hDgfuVBwSw7ILX9wkl5J2Eu/ew3TRB8lDO7XX4DF0p2L1DyZl+r0HSB9NgQH4kI7 HSxW0oo34bu+S/u3ycMZ1RjjzzVKtI5S6ydVz2qKVqhuSwuFJnndoKjrzMphwraN cKSTLyIj77FK1IUtiivprXk15/lrlnoK+zIlrCzR/Yl5pBYDjb1VhTLUBzm8uNV/ dlYQqPygZFfK8Al/p1grILXWUHmdOaUX+AoWlitKDJo=

Can you help?

I installed an OBS plug-in for a virtual camera so that I could film my screen and pretend it's a webcam. I was able to use the virtual camera or my webcam on spelltable.com by selecting either from the dropdown "allow" menu. One day, I was no longer able to select my webcam. I could only select the obs virtual camera. I switched to MS Edge which worked as normal. I've uninstalled OBS and all plug-ins. Same result I've reinstalled firefox. Same result. I've been using MS Edge for websites that need my camera.

From today 4 march when I try to record a voice message on chat from facebook appear an error saying an error as occurred. On Chrome it work, from facebook app it work

I even tried other facebook ids and firefox profiles and ever the same. Even disabled the anti popup ublock

In all case I haven't added any conf or adon or other inside firefox, I use same conf as ever and from many years.

Today messages from microphone in chat does not work and facebook say an error occurred Is written in italian but say what I said

Issue description: Similar as https://support.mozilla.org/en-US/questions/1294366 But I'm not using USB wireless receiver, I'm using wired network adapter for connection

I've been using the Firefox browser, and recently when downloading files with Firefox, sometimes it prompts: .part could not be saved, because the source file could not be read. # see image #1 I'm trying to download file to disk D. But the fail tips is download .part file to disk C. Maybe firefox is using some file cache policy which I don't know. I also checked both two location, my account have read/write access.

I can try to resume the download, and the download progress will increase, but about half a second later it will fail again. If the file is small and my internet speed is fast enough, after several attempts the file will eventually download successfully. # see image #2 I have tried using "private window" or enter "about:profiles" to create/use a new and clean profile, but the issue still persists. # see image #3 I tried using other download tools like "Internet Download Manager", and the download was successful. It's ok for use chrome to download the same file to same disk location. The problem recently emerged, it didn't exist before. At least a month ago, the same computer didn't have this issue. I'm not using parental controls.

Enivronment: OS: Windows 10 professional 22H2 Firefox version: "124.0.2 (64 位)", auto update is enabled, it should be the newest version. security software: windows defender

I keep getting this message that pops up in a private window to restart to keep using firefox. Everytime I click restart Firefox, it closes my tabs and opens them again. However, 5 minutes later the window pops up again. Even after repeated attempts of updating, even doing a full restart on the computer, Firefox continues to send this window to me. The private window in the bar says about:restartrequired.

I've tried uninstalling Firefox with a fresh install as well as doing a Refresh of Firefox. Neither seem to solve this problem.

Hi, Before Firefox's Version 125.0.1 (64-bit) latest update I could download any file from my safe office environment, behind firewalls, VPN, ... Now despite of unchecking the "Block dangerous downloads" I'm still unable to download files. I have Windows 10 on my laptop.

Here are the steps: Click on a file, Save "File not downloaded. Potential security risk." Click on the message - Allow download The result is a file with content "HTTP Status 405 – Method Not Allowed".

Please help me to work the downloading again. I am aware of the safety but I want to switch off this feature.

Thanks in advance for help, Tibor

I use Outlook.live.com Hotmail and recently a PopUp Message appears asking me to:

Add outlook.live.com as an application for mailto links.

Microsoft Customer Service said it was not something they initiated and likely a Firefox issue.

It does not seem safe to click on a random link like this without any explanation. Each time I log in, the same message appears.

Could someone please explain what this is for and how I can stop it from popping up each time I log into Hotmail?

Hi! On the latest version Mozilla Firefox 125.0.1 when i download .docx files i get the message 'File not downloaded: Potential security risk.' I select Allow download and the file downloaded can't be opened.

Thanks!