Firefox 技術支援討論區

We had problems completing IRS fillable forms on our Mac. After processing a major update on the Mac, we tried to open Firefox, but instead got the message "A copy of Firefox is already open. Only one Firefox can be open at time." The Firefox we are trying to open is the only one there.

Hello. Have only 1 version open, yet get error msg can't open more than 1.

Macbook Pro Monterrey 12.3.1 updated today. When restarted after update, got notice that I now had newest version of Firefox.

Have gone through Apps folder, Trash, searched Finder, task bar, every place. Deleted Firefox and downloaded again. Still get that error msg, even though there is only 1 on my machine.

Desperate, have to file taxes tonight. Don't want to resort to Chrome and have my privacy violated.

Please help.

Thanks so much,

Lynne

When newest FF version opens, it cannot see any of the data that is in each of my three older profiles. I've switched to each one and each one appears empty with the new version. Is there some new step to take in this version when switching profiles? How to bring an older version of Firefox and older profiles from Backup to replace what's now unworkable... and regain my important data? Thank you for your timely, much needed help.

Hello,

So my Firefox literally just updated to 99.0.1 and once it re-opened all of my immediate interface preferences were cleared/messed up (Addon Placement, User CSS, Toolbar, etc.) and upon further inspection my various preferences, data, and settings in my individual addons appeared to be erased or missing as well. (OneTab links, Sidebery configuration, etc.).

Syncing also appears to be disabled, as while my account is logged in I get no response whenever I hit the "Turn On Sync" button.

My next go-to move would be to refresh the browser and turn sync on to pull everything back. But while I can re-do most of the interface preferences and such, I had a great deal of links saved in OneTab for various projects, browsing etc. so I am really worried about whether I'd lose that data permanently if it isn't gone already so I'm not sure what to do.

Any help would be most appreciated, thanks!

I realize that you all don't support the older version. Yet it's also the case that Apple won't update this El Capitan on my 2008 model (terrible, a crying shame, I know).

I've also tried to install your Extended Support Release. Will that work? I'm an independent research scholar, not currently associated with either Oxford or Stanford.

So I really need to have your Firefox back — I had it until this morning, when I needed to trash it (b/c of a bug), and then re-install. Yet I've not been able to re-install so far.

Hence, I'm seeking your help!

Thank you, Davy

So I have my Download button visible all the time.

Yesterday, this suddenly started to happen.

When I download something, the list of Ongoing Downloads stayed open. It never did that before.

Any idea why and how to fix it?

Windows 10, Firefox 98.0 (64-bit)

Uninstall Firefox running on win 10 & cannot reinstall just will not 'take' just installs shortcuts but will not start & cannot access Web when other browsers can... currently asking through android Firefox have account yet win browser will not do a thing and no reference of installation in Windows directory despite shortcuts being visible and a rough simily of Firefox browser opening on desktop really freaking me out... can you advise please...

have mac 10.10.5 -tried to install newer firefox browser (not compatible) and in process lost old version of broswer and all bookmarks. Can find and reinstall original browser and regain my bookmarks

I'm buying a new computer and I'm wondering is there a method/procedure that I can use to transfer the entire FF browser including settings, extensions, bookmarks, and passwords without having to reinstall all those items individually? I know I can save and import bookmarks but what about everything else? I look forward to anyone comments. Thanks

I downloaded the latest Firefox to my Linux and got this error message: W: Download is performed unsandboxed as root as file ......etc. There's more, but can you tell me what happened and if I need to worry? I haven't had any trouble using Firefox since the update. I've attached a screen shot of the whole message.

I appreciate any help.

Hello,

IS there any plan for TLS to go away with any upcoming release? Is there away to sign up for release notes to come to your inbox in advance?

thank you, Amanda

I just discovered this PPA thanks to OMG Ubuntu. But is this PPA official?

link text

I'm trying to migrate my Firefox application and all of its associated data from my old computer (Windows 7) to my new computer (Windows 10). I copied my Mozilla folder from my old computer onto a flash drive. Then on my new computer, I executed the application from the flash drive, but it doesn't have my associated data from my old computer. What should I have done?

I updated to version 99.0.1 but it keeps on going back to 98.0.2. Things I had tried:

• Uninstall and reinstall Firefox
• Refresh in about:support
• Use a new profile

I think it is happening daily around the same time. Suddenly my pages in Firefox will stop loading. Then I need to close and reopen it. And then it will prompt me to start with a new profile because I am using an older version. On check, my Firefox had been reverted to version 98.0.2. Then I have to update and then only I can change back the profile.

I use Firefox as the browser for my email. Recently I have been unable to open or download pdf attachments (or any attachment) to emails. When I click on the attachment I get the message javascript:void(0).

I contacted the email company who said there was no problem at their end and that the problem was with Firefox and pop up blockers. I followed the advice in the attachment to unblock for my email account - but this did not solve the problem.

So I then tried Edge for my emails and I can open attachments in Edge.

So the problem is with Firefox.

Any advice please? Thanks