Diễn đàn hỗ trợ Firefox

I'm simply trying to email someone using the email link on their site.

The link is a mailto link which requires an email application (which I don't have). All I want is to copy the link to the clipboard.

Firefox lets me right click the link and copy the email address, but this doesn't allow me to provide the required Subject specified by the site's author.

I could have sworn Firefox used to have this feature. Netscape and IE certainly always had it back in the day.

I wanted to use the new VPN feature and the icon initially showed up in the top right, but it has disappeared and is not present in "customise toolbar" or privacy settings either.

Installed Firefox on my laptop. Already running on my desktop.

Whenever I try to open a link, I get: Get an app to open this 'microsoft-edge' link

Your PC doesn't have an app that can open this link. Try looking for a compatible app in the Microsoft Store.

Is this Microsofts way of saying "Use Edge?" Can I change settings to make it work?

As of 7/10/2025, Xfinity Streaming does not open through Firefox. I much prefer Firefox to any other browser so I am a little mystified as to why all of a sudden Xfinity Streaming does not open. I receive my Comcast email through FireFox but when it comes to streaming content, the Xfinity logo just sits there and does not open.

After the latest auto update all of my history, tabs/windows, and bookmarks were deleted and I can't recover them. I have tried importing bookmarks and it does not allow me to upload an old data file and I can't restore my previous session. I tried checking both profiles but neither had my information saved and now when I open the about:profiles says "Another copy of Firefox has made changes to profiles. You must restart Firefox before making more changes."

I'm scared to try anything else because I don't want to mess anything up further but I really need my tabs and history back.

I restarted my computer and then reopened firefox and it had updated and I noticed my bookmarks were gone but my windows/tabs were open, so I tried to choose a file on the bookmark backup and nothing was happening so I restarted and after that all my history and tabs were gone and I couldn't restore them.

I am using Firefox desktop on Windows 11. I have downloaded hundreds of articles from this website, with no problem until yesterday. I accessed the website using Edge, and it worked fine.

When trying to access a particular article to download it to Ancestry, the following message appears:

Application error: a client-side exception has occurred (see the browser console for more information).

I accessed the browser console for more information, which I'm sure someone can understand, but not this grandma. This is what I got:

The resource at “https://www.newspapers.com/static/js/consent/sourcepoint.js” preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly. ChunkLoadError: Loading chunk 3683 failed. (timeout: https://www.newspapers.com/_next/static/chunks/3683-ff579d469765b88f.js)

   NextJS 6

1528-4da4b08762a551e1.js:1:4065 Uncaught Error: Minified React error #423; visit https://react.dev/errors/423 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.

   NextJS 17

1dd3208c-fc303f05ffab3b31.js:1:118350 Source map error: Error: request failed with status 403 Stack in the worker:networkRequest@resource://devtools/client/shared/source-map-loader/utils/network-request.js:43:9

Resource URL: https://www.newspapers.com/_next/static/chunks/1528-4da4b08762a551e1.js Source Map URL: 1528-4da4b08762a551e1.js.map Source map error: Error: request failed with status 403 Stack in the worker:networkRequest@resource://devtools/client/shared/source-map-loader/utils/network-request.js:43:9

Resource URL: https://www.newspapers.com/_next/static/chunks/webpack-b55f805a59a40ebd.js Source Map URL: webpack-b55f805a59a40ebd.js.map Source map error: Error: request failed with status 403 Stack in the worker:networkRequest@resource://devtools/client/shared/source-map-loader/utils/network-request.js:43:9

Resource URL: https://www.newspapers.com/_next/static/chunks/1dd3208c-fc303f05ffab3b31.js Source Map URL: 1dd3208c-fc303f05ffab3b31.js.map

I really don't want to stop using Firefox, but I need a usable browser. Can you help me?

MB is telling me to put MB on Firefox! BUT, I already have MB on Firefox. Can you help me.

Thank you,

Tom Klima [edited email from public forum]

I'm experiencing an issue when copying PNG images only in the Firefox browser. Here's the problem: When I copy a PNG image and paste it into Photoshop or any other program, I get an image with a black background.

This didn’t happen before, but it started occurring after a few recent updates.

In other browsers, I get a “normal” PNG image with a transparent background.

Windows 11 23H2 - Firefox 131.0.3

I use firefox on laptop with a usb keyboard, On the laptop CTRL+Shift+P using Left CTRL+Shift+P and Right CTRL+Shift+P works as intended and opens a private window.

However on the usb keyboard using the Left CTRL+Shift+P doesn't work to open a private window while the Right CTRL+Shift+P works normally.

After a bit of trial and error i worked out the issue with the usb keyboard is the left CTRL key. It works for other shortcuts such as CTRL P but just not for the new private window command.

I tried loading firefox in troubleshoot mode to see if this was an addon issue, still no good. Tried 2 different keyboards from the one i use daily just to see what would happen and still the same issue.

Any suggestions? im at a loss.

I have my FF preferences setting as "Strict". But somehow Facebook people were able to hack into my FF account, and obtain my password for FB and other passwords? This comes directly from my Firefox preference page Red Warming Box includes & states on Sept 30, 2025 Facebook Hacked & Gained access to my account. Not a person, it states Facebook did it. And to change my FB password ASAP. So I go to my FB account go through their lame motions and they say they will not allow me to do so because I haven't used my account very long and they don't know if it is me trying to change my password. My question is what do I do now and how to prevent any social media outlet of simply hacking into my Mozilla account or my Firefox accounts? Please help. Seems like their should be a law against this type of intrusion gathering save password and etc.

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Firefox is no longer supported on Windows 8.1 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

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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.

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Putting people before profits since 1998 ___________________________________________________ Wierd. Thanks. Greg

hi,

  I have an old PC with this CPU:

Architecture: i686

 CPU op-mode(s):         32-bit
 Address sizes:          34 bits physical, 32 bits virtual
 Byte Order:             Little Endian

CPU(s): 1

 On-line CPU(s) list:    0

Vendor ID: AuthenticAMD

 BIOS Vendor ID:         AMD                                             
 Model name:             AMD Sempron(tm) 2400+
   BIOS Model name:      AMD Sempron(tm) 2400+                             CPU @ 1.6GHz
   BIOS CPU family:      29
   CPU family:           6
   Model:                8
   Thread(s) per core:   1
   Core(s) per socket:   1
   Socket(s):            1
   Stepping:             1
   BogoMIPS:             3333.66
   Flags:                fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat p
                         se36 mmx fxsr sse syscall mp mmxext 3dnowext 3dnow cpuid 3dnowprefe
                         tch vmmcall

Caches (sum of all):

 L1d:                    64 KiB (1 instance)
 L1i:                    64 KiB (1 instance)
 L2:                     256 KiB (1 instance)

Vulnerabilities:

 Gather data sampling:   Not affected
 Itlb multihit:          Not affected
 L1tf:                   Not affected
 Mds:                    Not affected
 Meltdown:               Not affected
 Mmio stale data:        Not affected
 Reg file data sampling: Not affected
 Retbleed:               Not affected
 Spec rstack overflow:   Not affected
 Spec store bypass:      Vulnerable
 Spectre v1:             Mitigation; usercopy/swapgs barriers and __user pointer sanitizatio
                         n
 Spectre v2:             Mitigation; Retpolines; STIBP disabled; RSB filling; PBRSB-eIBRS No
                         t affected; BHI Not affected
 Srbds:                  Not affected
 Tsx async abort:        Not affected

in some linux (arch 32 bit) I have problem executing firefox, Is there a version for CPU without request from SSE3 Flag?

thanks

There are many Recommended extensions that are doing so very shady things (collecting user data that shouldn't be necessary for the task the extension is doing, storing user data, sharing data with less then trustworthy 3rd parties, using bullying tactics to get people to subscribe and so on). Many of these extensions change their privacy policies or their monetization practices after you've given them a Recommended badge and you then blissfully continue to suggest the extension after these changes.

I've seen cites that prove that Mozilla's latest policy updates (thanks for no notice) are now positioning Firefox to sell our data for both ad targeting and AI training purposes. I oppose both, and have no use for Firefox if it joins those already disrespecting and monetizing user privacy in those regards. How do I a) ensure I'm getting the plain language notices of further policy updates, and b) register my dismay with Firefox for this betrayal? While you're coming up with an answer, I'll be discontinuing my monthly support for the Mozilla Foundation. I have HAD IT with the greed people ruining everything.

I keep getting pop-ups in the right lower corner from "mozilla firefox" (not sure if they are legit). They will say: "zeus.2020 trojan detected" or "virus detected" or "system is infected", etc. All have "Mozilla Firefox" in the upper left of the pop-up, and "via rgfirewall.xyz" at the bottom. Is this truly legit, or is it just a nuisance? I've just been closing them with the x or dismiss buttons.