Hi, it looks like Firefox pushed an update on September 19, and after that, all my tabs were closed, I got logged out of all my accounts, and it opened a new blank Firefo… (閱讀更多)
Hi, it looks like Firefox pushed an update on September 19, and after that, all my tabs were closed, I got logged out of all my accounts, and it opened a new blank Firefox window. Is there any way to recover my tabs and data?
Sometimes when I sign in on Microsoft Outlook's email portal - a multistep process requiring authentication on one's phone - it says: "Hang on a minute while we sign you … (閱讀更多)
Sometimes when I sign in on Microsoft Outlook's email portal - a multistep process requiring authentication on one's phone - it says: "Hang on a minute while we sign you out" and then boots me, forcing me to sign in again. For awhile this was happening only occasionally, and the workaround was to delete all cookies for Microsoft online and Office. But now this is happening more frequently, and sometimes it happens immediately after deleting the cookies. In effect, Outlook on Firefox creates cookies that then prevent it from working. And it doesn't matter whether you say yes or no to "Stay signed in?" at the end of the sign-in process.
I reached out to Microsoft tech support, and they basically said this is a Firefox issue because it doesn't happen on Chrome or Edge.
Anyone else encounter this?
I can't find any of the website I saved under add to collections anymore. Is there a way to put them back one my home page? Thanks for your time, Deanna Carder … (閱讀更多)
I can't find any of the website I saved under add to collections anymore. Is there a way to put them back one my home page?
Thanks for your time, Deanna Carder
how to delete fire fox cookies
I just updated windows and when I restarted safari there was no bookmarks showing in the task bar. How do I get the bookmarks to show in my task bar?
wHAT HAPPENED TO MY COMPUTER. WANT MY OLD PAGES AND ICONS BACK
directv link doesn't play. I get this code 8003. Site does play on Microsoft browser
Hello, what should I do if when I ask something, it gives me this Yandex?
How do you determine my location? Can I set my location?
See subject
gmail will not open using firefox
Hi. The "What's New?" page displayed all this: __________________________________________________ Help us improve your firefox.com experience In addition to Cookies nece… (閱讀更多)
Hi. The "What's New?" page displayed all this: __________________________________________________ Help us improve your firefox.com experience
In addition to Cookies necessary for this site to function, we’d like your permission to set some additional Cookies to better understand your browsing needs and improve your experience. Rest assured — we value your privacy. Cookie settings Firefox home
Features
Top Features
Fingerprint Blocking Ad Tracker Blocking Private Browsing Mode Free Password Manager
View all Firefox Features
Resources
Product
Desktop
Mobile
Release Notes
Support
Add-ons
Learn
Blog
Compare
Podcast
Download
Firefox is no longer supported on Windows 8.1 and below.
Please download Firefox ESR (Extended Support Release) to use Firefox.
Download Firefox ESR 64-bit
Download Firefox ESR 32-bit Download a different build
Firefox is no longer supported on macOS 10.14 and below.
Please download Firefox ESR (Extended Support Release) to use Firefox. Download Firefox ESR Firefox Privacy Notice Download
Firefox is no longer supported on Windows 8.1 and below.
Please download Firefox ESR (Extended Support Release) to use Firefox.
Download Firefox ESR 64-bit
Download Firefox ESR 32-bit Download a different build
Firefox is no longer supported on macOS 10.14 and below.
Please download Firefox ESR (Extended Support Release) to use Firefox. Download Firefox ESR Firefox Privacy Notice Release Notes
Desktop Desktop Beta & Developer Edition Desktop Nightly Android iOS
See what’s new in Firefox!
Release Notes tell you what’s new in Firefox. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the system requirements of this release. 143.0.1 Firefox Release
September 19, 2025 Version 143.0.1, first offered to Release channel users on September 19, 2025 Fixed
Fixed a tab crash experienced by some users caused by DLL injection. (Bug 1872261)
Reference link to 143.0 release notes.
Get the most recent version
Download Firefox — English (US)
Windows 64-bit Windows 64-bit MSI Windows ARM64/AArch64 Windows 32-bit Windows 32-bit MSI macOS Linux 64-bit Linux ARM64/AArch64 Linux 32-bit Android iOS
Your system may not meet the requirements for Firefox, but you can try one of these versions:
Download Firefox — English (US)
Windows 64-bit Windows 64-bit MSI Windows ARM64/AArch64 Windows 32-bit Windows 32-bit MSI macOS Linux 64-bit Linux ARM64/AArch64 Linux 32-bit Android iOS
Firefox is no longer supported on Windows 8.1 and below.
Please download Firefox ESR (Extended Support Release) to use Firefox.
Download Firefox ESR 64-bit
Download Firefox ESR 32-bit Download a different build
Firefox is no longer supported on macOS 10.14 and below.
Please download Firefox ESR (Extended Support Release) to use Firefox. Download Firefox ESR
Download Firefox Download Firefox Download Firefox Download Firefox Download Firefox Download Firefox Download for Linux 64-bit Download Firefox Download for Linux 32-bit Firefox for Android Firefox for iOS
Firefox Privacy Notice All Firefox downloads Need help or want to leave feedback? File a bug Leave feedback Get Involved
Did you know that most of the content in Firefox Support was written by volunteers? Find out more Other Resources Developer Information Complete list of changes for this release Press Kit Mozilla and Firefox News Firefox Extended Support Release All Firefox for Desktop Releases Learn more about Firefox Get the most out of Firefox with how-tos and online security tips.
Get Firefox news Download Download Firefox
Windows Mac iOS Android Linux Custom Download Options
Latest Builds
Nightly Beta
Firefox for Business
Enterprise
Community
Connect Contribute Developer
Resources
Compare Release Notes Learn Support Add-ons Community Blog
Follow Us
Instagram YouTube TikTok Bluesky Podcast
Firefox
Website Privacy Notice Terms of Use Cookie Policy Community Participation Guidelines Logo Trademark Licensing
Powered by Mozilla
Putting people before profits since 1998 ___________________________________________________ Wierd. Thanks. Greg
How can I customize recommended stories so that only articles that require a sign-in to be viewed not be shown to me. If I see a story title that looks interesting and I … (閱讀更多)
How can I customize recommended stories so that only articles that require a sign-in to be viewed not be shown to me. If I see a story title that looks interesting and I select it and a sign in page immediately pops up (all of which I do not wish to sign up for just to read a short article) then it feels like another privacy grab.
I am getting a 403 forbidden error on a site that I have always had access to
After a recent update, my address bar behaviour change so much that it's making Firefox unusable for me. The behaviour I want and what I used to have: - I start typing i… (閱讀更多)
After a recent update, my address bar behaviour change so much that it's making Firefox unusable for me.
The behaviour I want and what I used to have: - I start typing into address bar, I select the highlight (search or history result usually) - I press Cmd + Enter, the highlighted result opens in a new tab.
Now, what I get is: - The halfway typed text gets selected and turned into a url, for example if I want Reddit and I type "red", it opens https://www.red.com/ ?? - It does NOT open a new tab
I think now Option key behaves kind of similar to how Cmd key used to behave. I was on the 128 ESR release for a long time, so it might have change a while back.
How can I get back my Cmd key behaviour, to behave like Option now?
видео с youtube.com грузятся крайне медленно,не могли бы вы решить мою проблему?
Dear all, I am searching the mozilla knowledge base and the internet, but I cannot find a solution to a simple problem. I used everything. Example: I would like to have m… (閱讀更多)
Dear all, I am searching the mozilla knowledge base and the internet, but I cannot find a solution to a simple problem. I used everything. Example: I would like to have my data saved and synchronized between devices after logging into my email so that I don't have to keep logging into the selected website. I also want websites other than exceptions to be deleted from the history after closing the browser. On computer A, I installed Firefox, created an account, and then added specific websites to the exceptions so that cookies would not be cleared when closing the browser. The account was synchronized. On computer B, I logged into my Mozilla account, and these saved websites require me to log in.
Thanks for your support.
Best regards, Maciej
Having MAJOR frustration with passwords being identified as "incorrect" I'm ready to give up on mozilla
При заходе на сайте ya.ru и если на нём имеется строка с видео или поиск с алисой, то начинаются сильные фризы. Это ошибка именно в firefox 142, проверенно. … (閱讀更多)
При заходе на сайте ya.ru и если на нём имеется строка с видео или поиск с алисой, то начинаются сильные фризы. Это ошибка именно в firefox 142, проверенно.
Не знаю по какой причине, возможно какой-то баг или ещё чего, но у меня пропали все вкладки, даже те, которые были сгруппированы. Возможности восстановления предыдущего с… (閱讀更多)
Не знаю по какой причине, возможно какой-то баг или ещё чего, но у меня пропали все вкладки, даже те, которые были сгруппированы. Возможности восстановления предыдущего сеанса у меня нет.