All Products Support Forum

macOS 14.1.1 on an M2 with FF 120.

When going to sites such as nbcnews.com/now or https://toronto.ctvnews.ca, A/V sync is off by about a second.

This appears to be due to the volume being muted when video playback starts. Unpausing the video leads to the video freezing for a very brief moment, then the A/V sync is clearly incorrect.

This can be replicated on YouTube by loading a video, muting the video (if not muted already), refreshing the page (F5), allowing the video to play, then unmuting the video. The sync will be incorrect.

If the audio is unmuted when the video play back starts, this does not appear to happen.

Following this article has no impact: https://support.mozilla.org/en-US/kb/performance-settings, nor does setting media.hardware-video-decoding.enabled to false.

This issue does not occur on Microsoft Edge.

Hi, I am seeing issues with autoscrolling in 119.0. In Rundeck for example you can "follow" the output of playbooks that are running so you can dynamically see the log as it is written. The autoscrolling in this field has stopped working. When manually scrolling in the field, more messages appear but the autoscrolling is no longer functional. I have also seen it on other places, though I don't have remember good examples to add, so I don't believe it is Rundeck causing the issue--we also haven't updated rundeck recently in our environment, so it shouldn't have changed since before 119.0 was released. Let me know if there is more information I can provide to diagnose the issue.

Hello,

I have been using Firefox Mozilla for many years. This morning it opened up fine. Then this afternoon (Dec 7, 2023) it would not open for me and when I try to open a new tab it says that it crashed.

I looked and I do have Firefox as my start up browser in my settings. Thank you for any advice on getting back to my favorite browser.

Sincerely, Sandy

So I've noticed that after putting my computer to sleep, upon return Firefox will be unable to load any videos from seemingly any site. The temporary solution to this is to reset my computer as sign offs, locks or returning to sleep do not clear the issue. I've tested on different browsers/sites and can confirm that this is exclusive to firefox. I have booted firefox in troubleshoot mode, cleared my history and given the sites time to load with no luck on any of them.

Is there a solution to this?

Frequent browser crashes on the VK website when viewing content. What is it and how to solve this problem? Drop a message: https://crash-stats.mozilla.org/report/index/8b7a6415-dc8a-43ac-a0fe-e1d780231126#tab-details

For the past 3 months or so, anytime I try to login to Sony Playstation website I can't get past entering my email. After putting in my email and hitting next the website slows and firefox slow crashes. I have to force firefox to close. I have tried leaving a message to Playstation Twitter support. I've noticed their sign in page has change a few times recently so I wonder if it's an issue they caused. Either way it would be appreciated if it was looked into. Always feels like a lot of websites only care about chromium. By the way it works fine on edge or chrome. It also does not work with private browsing, so I don't think it's my extensions or cookies. I have also tried multiple computers.

After selecting Mozilla as my default browser, I tried to perform a search but the only page that loads is the page that wants you to download Mozilla on desktop and android, which I already have. Each time I've tried to do a search with Firefox this is the page that appears, no search results of any kind, but when I switch my search to duckduckgo and perform the search I get results. Can someone please help me understand why I can't perform a search using firefox?? Thank you in advance for your help!

‘When Thunderbird tries to get my new messages from my Xfinity account it is downloading all 36,000 emails on the server when I only need the most recent ones. Thunderbird already has years of my emails already downloaded. How do I have it download only the most recent emails that is not already in my ‘Thunderbird’ inbox?

After opening TB this morning, and initial download of new emails, I suddenly started receiving Authentication Failure while connecting to server imap.gmail.com popup when trying to download new emails on Thunderbird (Supernova). When I close TB and re-open it I see this:

Warning: Potential Security Risk Ahead

Thunderbird detected a potential security threat and did not continue to live.thunderbird.net. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.

Can someone help me solve this issue - in as low tech a way as possible?

Thanks, Linda

Sending of the message failed. An error occurred while sending mail. The mail server responded: <ayounce@woh.rr.com> sender rejected. The email address you are sending as must match the email address you used to auth. Please check your SMTP settings. AUP#Out-1500. Please verify that your email address is correct in your account settings and try again.

Hello,

I am getting a frequent freeze in the Android app and then shortly after a crash. Info: - happens on FF, FF Beta, and FF Nightly,and reinstall/phone reset didn't fix. - Samsung Galaxy SM-G965U running Android 10. - every error starts with java.lang.OutofMemoryError. - it never happens just on startup, just on auto fill, or some of the similar crash reports I've seen around here. - it does appear to be site-specific, but sometimes the site works and sometimes it does not: if I close the last tab after a crash, it will usually work for awhile. - Sync and disabling Add-ons doesnt fix it, although perhaps its worse with uBlock Origin enabled (not conclusively)

Thanks for any suggestions.

edited for clarity

Unable to start -> Side-by side configuration error message Unable to uninstall -> Another Message says there is an unfinished thunderbird update, must restart pc. after restart, no update starts. back to the same situation. Unable to Re-Install -> Downloaded Installer, but installation gives the same "unfinished update error"

I already copied the "Thunderbird" Folder from the "AppData/Roaming" Folder. Is this the correct Data Backup so I don't loose my emails?

Please help.

While trying to move emails from my inbox to a folder, several months worth of emails disappeared. I've tried doing a global search for them, but there's no trace of them.

I have access to the same email account using Thunderbird on two separate Macs. So one computer's Thunderbird has all of my emails, but the other computer's Thunderbird is now missing those several months.

I've tried using a Time Machine app to reverse the Thunderbird profile folder in the Mac's Library, but that didn't work.

Can I take the Thunderbird folder from the Mac's Library on the unaffected computer and simply copy-and-paste to the affected computer? When I tried looking up other help articles about doing this, I'm reading warnings that this action could negatively affect the emails on the good computer.

I also want to ensure that I'm copying the emails from the good computer, and not exporting them, thus removing them from the good computer. I want to continue having the same emails on two computers.

I'm also open to other suggestions for how to retrieve my lost emails.

Thanks in advance for responses on this.

David has helped me twice with this problem before.

My reply to the four questions he posed follows: 1) I have had a well-functioning email before this problem occurred; 2) There have been no changes to my computer that I have noticed; 3) I don't know what "server settings" are, and; 4) I have not received error messages, not this time, nor the previous two times when this problem occurred.

Hello,

When I send an email the SENT copy goes into SPAM. I haven't figure out yet if it is just some of the emails or all of them, because it happens sometimes not all the time. Recently, the whole SENT folder content landed into the SPAM folder. I read on the forum here, that I should whitelist my addresses books. I did it, and I put special attention on doing it with my own email address. My believe is that my address has been replicated and someone sends me SPAM from the very same email address I use. Therefore, I whitelisted it on the server setting under Thunderbird settings. When a I receive a SPAM email from my own email address I just delete it.

But, now it is happening again and my own SENT emails land into the SPAM folder.

Is this a Thunderbird issue or my email server issue? How can I fix it?

Thank you so much in advance for your help.

Regards,

Hello, I have been a diehard Firefox user since it was still in Beta. I have been using computers personally since 1994 and professionally since 2004, doing Windows and Linux systems administration. I can and will do whatever (within limits) you need me to do to troubleshoot and resolve this issue, which is otherwise going to cause me to abandon this otherwise excellent browser, perhaps forever. The browser.cache.disk.capacity seems to work, but browser.cache.memory.capacity does not.

Why does firefox not respect the assigned values for browser memory cache (browser.cache.memory.capacity)? Is there anything I can do to limit the memory and processor usage of Firefox and its child processes? Is extension CPU/memory usage constrained by the application values? Is there a way to determine and/or limit the resource usage of extensions?

I have included a number of screenshots documenting its behavior and generated an about:memory report during "normal use". After configuring a number of system variables, I then attempted to determine its resource usage under heavy load.

Open the browser with a couple 2, 3 tabs: ~1GB memory usage Use the browser as "normal" (dozens tabs): ~2GB memory usage Open 100+ tabs from history: The CPU and memory resource usage increases until it consumes all available system resources despite configured values. After killing and restarting the process, the tabs have invisible titles in the extension and browser, and must be closed using Ctrl+W until only a few remain after which the browser can be used normally and again consumes ~1GB.

While I understand "just don't open so many tabs", under some circumstances such as poorly written websites, bugs, etc, even single sites may attempt to claim excessive resources. I sometimes run VMs and such on this machine and in order to retain a responsive system, cannot have applications consuming all of the available resources. I have found one proposed solution that uses an external application, is this the only way?

I am open to allowing Firefox to utilize more of the SSD storage (the 1GB limit was imposed for testing) and would be fine with increased slowness due to disk cache or refetching internetworked resources. However, none of the settings I have changed or attempts I have made appear to be able to limit the memory usage in any way. Additional included screenshots are linked above instead of as attachments due to number. I can share or generate additional reports to assist in troubleshooting.

Thank you! JackD

As of yesterday when I was running v119.0 I was able to screen capture streaming content from Hulu/Netflix etc, this morning after upgrading to v120.0 overnight, that capability is now lost. Video and still captures are just a black screen. Please fix!

I use Firefox for Mac. Often when I want to click on a link or complete an on-line form, a long list of unwanted suggestions pops up and orevents me doing this. Only by hitting Escape can I get control back.

By the way, I don't want any solution which involves clearing the cache, as I value that help.