Firefox Community Forum

Hello Community,

I have been experiencing significant issues with Firefox for the past couple of months. The main concern is high CPU and RAM consumption during video playback, especially on YouTube.

This issue started appearing only for the past month or two; it was never present before on the same system, and no significant hardware changes have been made.

Crucially, this problem is exclusive to Firefox. I have tested video playback on other browsers such as Google Chrome, Brave, and Microsoft Edge, and do not face any similar performance issues with them.

Your assistance in resolving this is greatly appreciated.

Thank you.

After it updated to 147.0.3 it says that it is not compatibile with miniversion 147.0.2 nor with maxiversion 147.0.2. It suggests re installing (done) so can now at least access Mozilla again but still says at varying times not compatible etc. It is Windows 10 Any suggestions?

I use Firefox on all of my computers and they all have a plus sign next to an open tab to open a new tab, but on this computer I have to right click on the 5tab bar to open a new tab - how can I get the plus sign to show for easy tab opening?

i re-installed my windows, installed firefox, and it automatically re-synced everything, a few days later, windows had an issue so i had to install windows again, but this time, when i installed firefox, i logged in, and after finishing syncing nothing was there, everything is gone, that being said, it's only form the desktop browser, i still have all my bookmarks and passwords on my phone's firefox, but they wont sync into the desktop one i cant find an option to export the phone ones into a file to import in the desktop app, i need help

Within the Applications section of my settings, I have it set to open content type of crcc with an application. However when I try now after the latest Firefox update, it opens a new blank tab instead of just launching the application. The URL of the blank page is just "crcc://the_URL_of_the_launching_site?params=dG9rZW49ZWJlN2IyY2FmMTM3YmQxODM3ODZhZDU1NWY2Zjc0ZDNiMWE5ZWIyMSZ2ZXJzaW9uPTEwLjMuNTEzMjEuMjUxMjAmdHVyblBhcmFtcz0lMjJzdHVuJTNBc3R1bi5sLmdvb2dsZS5jb20lM0ExOTMwMiUyMiUyQyUyMnN0dW4lM0ExOC4xOTYuMTA3LjIwOCUzQTM0NzglMjIlMkMlMjJ0dXJuJTNBMTguMTk2LjEwNy4yMDgrJTVCMTc3MDk5NzE1MSU3Q2JsR2hXNDQ3STV5NVl1ViUyQlZ0WXBtMmdKUkpjJTNEJTVEJTIyJTJDJTIyc3R1biUzQTE4LjIwOC4yMy40NSUzQTM0NzglMjIlMkMlMjJ0dXJuJTNBMTguMjA4LjIzLjQ1KyU1QjE3NzA5OTcxNTElN0NibEdoVzQ0N0k1eTVZdVYlMkJWdFlwbTJnSlJKYyUzRCU1RCUyMg==" I tried the standard clearing cache, private window with no help. Anyone else notice this and is there a work around. Of note, after about 5 minutes it does eventually open the application.

Hello everyone,

I’m experiencing ongoing problems with Firefox and hope to get some help or clarification here.

Main issue: I’m unable to sign in to my Outlook / Microsoft email account using Firefox. The login page does not load correctly, or the sign-in simply fails (Error 400). When I use another browser (for example Microsoft Edge), the login works without any issues.

System information:

Operating System: Windows 10 IoT Enterprise 2021 (LTSC, supported until 2032)

Firefox version: 147.0.3 (64-Bit)

Additional problems: Besides the Outlook login issue, Firefox has recently become more problematic during normal daily use:

Text selection with the mouse often does not work correctly

Clicking and dragging to highlight text is unreliable or stops working

Pages sometimes feel unresponsive, (ChatGPT)

Overall, the browser feels less stable than older Versions on Windows 10 22H2

These issues seem to be getting more frequent over time and occur on multiple websites, not just Outlook.

I switched my system to Windows 10 IoT Enterprise 2021 (LTSC, supported until 2032) in the hope of improved performance and stability.

What I have already tried:

Clearing cache and cookies

Disabling all add-ons/extensions

Testing in Private Browsing mode

Restarting Firefox

Unfortunately, none of these steps resolved the problems permanently.

My questions:

Is Firefox fully supported on Windows 10 IoT Enterprise 2021 / LTSC for the long term (until 2032)?

Are there known issues with Microsoft / Outlook sign-in specifically in Firefox?

Are there known stability issues (text selection, mouse interaction, page responsiveness) in recent Firefox versions?

What settings or troubleshooting steps are recommended to improve stability?

Thank you very much for your time and support.

Best regards, Marco Klecker

I am having passwords and emails not being saved.It does not matter whether it is ether or both, It does not recognize them a lot of the Roku channels I have. Sometimes it asked to save,or the reminder will not come up. Trying to recoup password or create a new is just as bad I realize some of it is the websites fault BUT............. The problem still exists .I also may be doing something wrong. Please help me if you can

                            Bill Baronas

Describe exactly what isn’t working (e.g., “Videos pause every 5 seconds on Firefox version 118.0.1”).

Include when and where it happens (e.g., which website, device, or operating system).

Mention any steps you’ve already tried (e.g., “I cleared my cache and restarted the browser, but the issue persists”).

Здравствуйте! Установлено расширение PrintFriendly - Печать, PDF и скриншоты веб-страниц. С некоторых пор, совсем недавно, опция PDF перестала сохранять отредактированные страницы практически с любого сайта из интернета. Это крайне неудобно. Скажите, эта проблема никак не связана с возможностями и особенностями функционирования браузера? Спасибо.

What happened to the feature in Settings that allows turning off Firefox control of mouse.

I do not bother to remember the name of the setting, because I simply turned it off each time there was an update, to avoid the problems it caused. NOW, it is no longer in settings.

I first notices a problem when links on a banner did not work. It did no occur to me it was due to Firefox control of the mouse.

Next the mouse wheel function, configured in the OS, that scrolls three lines has become dysfunctional. It jumps around and jerk up and down when I use it to scroll 3 lines which is a huge time waste.

Then I went to settings to turn off the mouse feature and it was not there! So I looked in about:config and there is a huge list of mouse settings that appear to be configured the way Firefox has universally done without any way to disable Firefox control of the mouse.

Lastly, I do not have the mouse configured for accessibility; I have it minimally configured the way I need it in the computer OS settings. The Firefox configuration of how the mouse functions in Firefox also creates the same wheel problem when not using the browser.

How can Firefox universal configuration of the mouse be disabled. Nothing about it is useful or helpful, it creates a number of obstacle - primarily interference with the use of the mousewheel, and on some websites (primarily configured for the use of Chrome) the banner links are not responding to the mouse.

I do not have an accessibility configuration, nor do I use keyboard mouse shortcuts, Last time I updated I actually installed the entire program, hoping to avoid the Microsoft control of Firefox since the update feature apparently uses the microsoft app to update and takes control when Firefox is the default browser (perhaps also when it is not) - to no avail.

Please at least return the feature to disable Firefox mouse settings that allows turning off the configured mouse setting, or at least offer a solution for disabling them!!

Current behaviour in fullscreen mode: When I move my mouse to the top of the screen The tabs appear and the whole website content gets shifted down. It's ugly and distracting. Desired behaviour: The tabs appear as an overlay and part of the website content is hidden underneath them. No transitions.

What css js should I modify to achive this, any help? This prevents me from using firefox in fullscreen mode and saving space.

I do not want Firefox to restore my last session unless there was a crash, and thus I have the setting "Open previous windows and tabs" unchecked. However, if I reboot my PC and reopen Firefox, it brings up my last set of tabs. And I always close the entire Firefox window before shutting down, so there's no way it should think that it had crashed. This doesn't seem to happen when I close Firefox and reopen within the same PC session (i.e. without shutting down in between).

G0ogle hasn't helped! How can I remove some entries from the Bookmarks menu, such as: Search Bookmarks Bookmark All Tabs I'd also like to remove or hide "Other Bookmarks". (I'm using Firefox 147.0.3 x86 on Windows 10 version 1709.) Fingers crossed that someone can help. THANKS!

Why does Firefox think I am in Norway when I am in France? I use nordvpn for financial browsing but turn it off once I'm done. The VPN is not currently active, I have cleared cache and cookies and restarted Firefox and it still thinks I'm in Norway so search results are not accurate. Browser language is set to English and French. Thanks for any help in advance. UF

recently on a shared Windows 11 PC another user signed me out of Firefox and signed in with their Firefox account. For some reason this user kept my profile and now has access to my credit cards, passwords etc and this had synced to their other devices. So far I have not been able to log back in to Firefox on this PC. This is a security nightmare. Any thoughts on how I clean this up?