Firefox 技術支援討論區

Hello! I need some help. Every since 4-6 months ago, Firefox has been extremely slow when I boot it up at first, with some page load times taking more than 10 minutes. Some fixes have seemed to work, but they never work permanently. From my testing, it is not the result of any extension and the issue persists in troubleshoot mode. What has not helped my testing is that, after enough restarts of Firefox, the problem goes away and web pages load quickly, so this has caused some false positives. Has anyone else had a similar problem they were able to fix? Should I try uninstalling Firefox and reinstalling it?

Dear ladies, dear gentlemen,

on another Computer, when using Firefox, I am now constantly getting a Norton notification of a malicious domain request 22. The problem does NOT arise with the Opera browser installed on the same machine. What shall I do? Uninstall Firefox seems to be the best solution. Scans do not reveal presence of malware. On this computer, similar OP, this does not happen, but I use it much less.

Thanks a lot, Alexander

I recently performed a system reset and upon re downloading Firefox I can't seem to find any of my 50+ tabs that I had open previously, all of them I need for one reason or another, history is empty, can anyone please help explain how to get them back in simple steps?

I use to be able to work on one app/window and hover over multiple tabs to obtain brief details on the browser (tabs) as it sits behind the app/window I'm currently working on. Since about a week ago, this feature has gone away. Now I have to be on the browser to be able to hover over the tabs to obtain the info I need on the tabs. I do this to compare the order # that displays on the tabs for what I use it for. How do I get this feature back. I want to be able to hover over tabs to view the small details even when not currently on the browser itself. Please help.

We write an SDK that needs to detect what subdomain a site is running on. For example to detect that app.foo.example.com.au and web.foo.example.com.au share example.com.au

In order to do that we check if we can set a cookie on `.au` that fails. Then `.com.au` also fails, then `example.com.au` and that succeeds

This is safe and fast and leaks no information not already available to any JS running in the page.

In most browsers this is fine. In Firefox it is also fine _except_ it logs a warning to the console that a cookie was rejected. This then causes users to open a support ticket with us in order to find out about "the error"

Is it possible for us to suppress this log?

Firefox for some reason fails to print the document. Each time a “Print” button on viewer’s toolbar is clicked, an NS_ERROR_FAILURE error appears in the console (see screenshot). Other buttons work as intended. The PDF itself is rendered correctly. The only issue is printing in Firefox.

I trying to combine two similar but different boookmark lists on my Firefox browser but haven't been able to find a working solution. I could use some good advice where I don't need to download any sort of app.

Embedded links in Outlook email on Windows 10 will not open automatically when the new email is first opened to be read if Firefox has been selected as the default Browser. This is a new issue !

The message is" if there are problems with how this message is displayed, click HERE to view it in a web browser " and then the Browser used is only Edge!

Restoring disliked Edge to be the default browser corrects the issue but Edge is a known tracking device.

After updating to v120 my Firefox started behaving strangely. With v119 I was able to fire up my Linux and Firefox and had immediate access to both Gmail and Calendar. Now I am requested to sign in every time, are offered a Shareable Calendar (for which I have no use) and get a notification in my cell phone reporting a new login. It would appear that the problem lies in syncing as WhatsApp Web is also requesting scanning its QR code every time too. This is most annoying. No settings were changed after the update. As a temporary solution I grabbed a v119 tar.gz from my wife's laptop and installed it in mine. Now all is behaving normally as before. Am I doing something wrong? Will appreciate any help you can provide.

I installed Firefox on a new laptop and synced it. The bookmarks all were transfered. But when I log into some websites they do not recognize the password, even when the passwords are correct and still work on my previous computer/Firefox brow’ for ‘Firefox.

In the last few months, when clicking on the file icon to download a PDF, the "save as" dialog box does not show up fully and I have to view all windows then click on any open window for the dialog box to appear.

I am on a Mac desktop, running MacOS Monterey 12.6.5 I just updated Firefox, to 120.0.1

I attached an image of what the screen looks like after I click the file icon (top right) to download a PDF. It only shows the "Format" part of the "save as" dialog box until I zoom out to view all the windows then have to click on any open window, then the full dialog box will allow me to choose a location to save and rename.

Any help if this a Firefox issue or a Mac issue?

I‘m somewhat uncertain: I downloaded the Firefox Installer from (I believe) Mozilla.org via Edge. When I tried to Upload the file to VirusTotal I got errors first and it only worked after restarting the laptop.

The file hadn‘t been analyzed so far (which surprised me), 1 out of 72 scanners claimed to have found a Trojan but what bothered me more was that according to VirusTotal the file was compiled in 2018 with Microsoft Visual C/C++ 12.00.8168. It was also somewhat smaller than the last Installer I downloaded (342kb vs. 390kb), although both should be version 18.05.

So I‘m a little concerned if the downloaded file is legitimate?

Hello to everybody, My question: Opening local .mdb files (MS Access database) does no longer work in Firefox 120, but was ok in previous releases. The only choice is to save the file rather than onening it with MS access. Under Firefox settings/applications the file type .mdb does not appear. If I answer the question "What should Firefox do with other files?" with "Ask whether to open or save files" it has no effect at all. I expect to find an entry for .mdb files where to choose "always ask" as was the case earlier. Please help!

Regards Volker Zipp

Shortcut icons (4 rows of them) have disappeared from my Firefox home tab. After a Firefox update, they were gone. Just white boxes. I tried to re-enter shortcut information, but the box always goes back to white and empty. I tried a System Restore. That didn't work either. I depend on these shortcuts for my work and bill paying. Please, someone help me! Thanks!

raydle1101@gmail.com

Hello,

we have a BigBlueButton Server setup for our company. Until recently we used a TURN-Server to tunnel the UDP connections thrugh the firewall.

Due to performance issues we wanted to try and let the clients connect directly to the udp ports 16000 - 32000

In Chrome this works as expected.

In Firefox however when we set "media.peerconnection.turn.disable" to "true" FF does not find any WebRTC candidates. We checked the logs and it says there:

"relay only option is set without any TURN server configured" "relay/proxy only option results in ICE TCP being disabled"

But thats NOT true! The option "media.peerconnection.ice.relay_only" is definetly set to "false"

Tested on FF 115.5.0 ESR and 120.0.1

Does anyone have an idea whats happening here? Why doesnt FF even try to make a direct connection?

UPDATE: I just ran a test on our dev system. If we configure BBB so that it does not offer any TURN-servers, FF uses a direct connection. Sadly that is not possible, since we need the TURN server for external connections. When there are TURN-Candidates but TURN is disabled via FF config no connection is established at all. This definetly semms like a bug in FF, since the browser should still be able to simply try and connect directly.

Thank you for you support