Firefox 技術支援討論區

Whenever I try to download something off my google drive, text pops up in the bottom left corner, but then nothing happens. It works just fine on microsoft edge, so I think its a firefox issue and not a google drive issue. I tried refreshing my browser, deleting my cookies, updating my browser, turning off enhanced tracking protection, and anything else I could think of. Please help.

On another user's account, cannot go back to earlier FF version, profile files missing. Cannot start _any_ revision, old or current (using OSX Sierra on that user & different FF versions - the shared data you see her is NOT the same ) details here: https://support.mozilla.org/en-US/questions/1356226

I don't see the profiles.ini and installs.ini files within the Profiles folder. I see the general format from looking at good ones in my own Profile.

Don't understand why some are "locked."

How do I re-create them using the existing Profile names, and how do I denote which to startup using (the default folder?) Can't find any Help files to explain.

This is driving me mad, we are using the same physical computer because mine broke, so I start it up off an external drive containing my drive, then I have to shut down & restart on the internal drive to work on it, but then I don't have access to my saved files or to post on the forum.

I broke an old computer and have my logins from it on a backup drive in logins.json and key4.db. I can't work out how to transfer these logins to my new computer. I've tried creating a new firefox profile since I am nervous of losing logins that are on my new computer, but then I am totally lost.

Hello everyone I re-install my win7 recently. I can get the firefox browser installed whitout any errors but it doesn't open. However I can see it's open in task manager in processes tab. what would be the problem? please advise

I am running Unix Ubuntu 22.04 with Firefox 104.0.01 (64 bit). My Canon LBP 6230DW works fine in my word processor and in Chrome, but it does not show up in the Printer destination field when I am in Firefox. The only print option is to "Save as PDF." How do I get the Canon to be a print destination in Firefox?

Not for the first time, I suddenly cannot download any files in firefox (from PDFs to wetransfer links etc.). I have followed every bit of online advice there is. In troubleshoot mode I can download files. However by a process of elimination it is not caused by hardware acceleration, addons or extensions or my avast antivirus. This is really troublesome and I really need to download a lot for work. Performing a refresh every couple of weeks is not the solution.

This problem has been around for at least two years now.

Greetings everyone,

Firefox is my preferred browser and I really prefer the Firefox Engine over Chromium that most other browsers use.

I want to install a backup browser that runs the Firefox Engine in case my Firefox browser has a problem.

I searched a lot and I thought installing this would be the best option: https://www.mozilla.org/en-US/firefox/developer/

However, I’m worried that installing the Firefox developer edition will change my Firefox installation…

( :( :(

I just installed the latest Version of Firefox 101.0 for Windows 10. Then when I tried to download a pdf file from my yahoo mail I received the following message: "Problem loading page" Firefox Can’t Open This Page To protect your security, dl-mail.ymail.com will not allow Firefox to display the page if another site has embedded it. To see this page, you need to open it in a new window. Learn more… Open Site in New Window Report errors like this to help Mozilla identify and block malicious sites

So, in order to open the page I have to press "Open Site in New Window"

Please advice why happened this issue and how can be fixed.

I'd love to have Firefox release version and Firefox beta installed side-by-side on my Mac. Is it possible? If not, how do I make it so without encountering weird problems? If any from Firefox's dev team are reading this, please just make this possible. Chrome and Edge do it. Firefox should, too, IMO. Thank you.

Howdy, fellow Firefox aficionados.

I'm running FF on a Windows 10 Home 64-bit desktop. Some time ago, I suddenly could no longer open Firefox because it couldn't find my Profile. So, I attempted to create a new one, but it would not allow me to do so.

"Changes Not Saved"

   "An unexpected Error has prevented your changes from being saved."

[See uploaded Image]

More than likely, either I, or one of my system maintenance programs wiped some data or folder. I have deleted Firefox and reinstalled it with the latest version, but this dilemma persists.

Thanks for reading my post and if you reply, a big Thanks!

I'd like to update my mac's firefox, but not to the latest version. I know about the directory of releases, but I can't seem to find advice on what to do once I download the file. I don't want to create a separate profile, or risk messing up the profile/settings I have currently. So, any thoughts? Thank you in advance for the help.

It seems like no matter what I do, I can't get Firefox to download files from Google Drive. It loads for a moment, then it says "The page isn’t redirecting properly". I have confirmed that it's only Firefox because I can download files from Google Drive with Google Chrome. I have disabled Enhanced Tracking Protection, selecting the Standard Enhanced Tracking Protection Setting, and even refreshing Firefox. Though, I noticed that it only works on incognito mode for whatever reason.

Apologies for asking this here, but I've done the Google and can't find an answer.

Background: I keep 2-3 Firefox versions and profiles on my computer. The software is in, for example, directories FFox82, FFox84, FFox86 The profiles are in, for example, directories Firefox82, Firefox84, Firefox86 (The software and profiles are on different drives.)

When I do an upgrade, I copy the newest software to a new directory and rename it (e.g., FFox92 - so now there are 4 sw directories) Then I copy the newest profile directory and give it a corresponding name (e.g., Firefox92 - so now there are 4 profile directories). I install the new version to its directory and thenlaunch with a -p option. Then I create a new profile and point it to the corresponding folder. Then I launch the new version with the -p option pointing to the new profile directory.

This has worked for decades.

But I just tried it with Firefox 90 and Firefox 92 and NO GO. It acts as if I've never used Firefox before. No apps, no toolbars, no bookmarks, nothing.

What is going on? Am I stuck on Firefox86 for the rest of the century?

And, please, don't tell me how wonderful these new versions are and I should simply accept the change. I have a virtual lifetime invested in the toolbars, extensions and bookmarks on my computer.

I simply want to know if there is a fix and, if so, what it is.

Hello :) For some time now my firefox doesn't allow me to preview PDFs. If I open it, it gets downloaded at the same time which I don't need. I already tried the thing with renaming the handlers.json to handlersOLD.json but it didn't work :( does anyone know how to fix this?

The update Firefox 100.0.1 ( or 2 ) has a bug: Firefox doesn't "see" the Fritz!Powerline ( LAN over Powerline adaptors ) and thus I can't enter the Fritz!Box. Even typing the IP address of the Fritz!Box doesn't help, because there is "no connecting" beyond the PC. The hardware works, so I can send and receive emails, but I can't access the internet via the firfox browser. Stepping back to 99.0.1, I had to "create a new profile" and all my previous ( before the update to 100.0.1 ) settings were lost, all bookmarks vanished ... I am rather angry, you know? This mail I'm sending via my notebook, as I this connects via 100 Mbit Lan network from an other room and as I had to "register" just to be able to complain ...

Just updated to latest Version 89.0. Rebooting the PC all of Firefox's colors changed to terrible washed out colors. Reading other inquiries I tried running the extension "Firefox Colors" but it didn't help. How do I reset to original default colors? Sincerely, DDBob.

My install of Firefox was somehow corrupted. I was instructed by FF tech support to download the latest "Nightly" build, extract it to my "Downloads" folder, and launch it using the following command:

MOZ_ACCELERATED=0 MOZ_WEBRENDER=0 ~/Downloads/firefox/firefox

This opens a working install of "Nightly" (with purple & blue firefox icon), but as soon as I close it, the icon goes away. The program is not recognized as "installed" so it does not appear in a search for installed apps. And if I right-click on its icon while running, "Pin to taskbar" is not an option.

"Nighly" is working (I'm using it to type this) and I even have it Synced to my account, but the ONLY way to launch it is via the Terminal CLI. :(

My broken copy of "Firefox" is still listed as installed, but is unusable.

HELP! TIA

It would seem that Mozilla has not yet created an official portable mode for Firefox(Seriously, after all these years?!?). It needs one in a bad way.

Now when I say portable mode what I mean is that the Firefox EXE runs from the folder it's in, using profiles that generated and exist in that same folder and NOT in the user profile. This functionality is needed not just for easy portability, but also for easy migrations from one system to another or one installation of OS to another.

While the portability mode should be exclusive to the platform FireFox is being used on(IE Windows vs Linux, etc), it should be seamless transition otherwise.

Before anyone chimes in and says this is not possible, please don't waste your time. Forks of FF have been doing so nearly effortlessly for more than a decade while maintaining perfectly functionally and security with the same usability.

So Devs, can you please make this happen? We the public would ever so grateful.

Additionally, can we get some fine grained controls over the appearance of UI elements?

This double spacing nonsense is irritating.

Then there is the Extension Icons labels. They've been gone for a while and they need to return, or at least an option to enable them if we wish.

Next we have the "Home page and new windows" option in settings. Those two options should not be combined. When I open a new instance of FF, I would like to open a blank page. I don't want any navigation happening until I click something or type in an address. I expect FF to sit and wait for my input. Then when I click the "Home" icon button does it go to my define home page.

Next problem we have is the auto update feature. This seems to have become an incredibly nasty feature and behavior. For example, I recently updated to Windows 11. After migrating my previous install of FF to it, it swiftly and without ANY warning or user prompt at all updated itself from 78.15.0esr to 91.3. This was NOT desired So how about to folks show respect to us users by ASKING if we want to upgrade! Had a prompt appeared I would have swiftly canceled. Updates should ALWAYS be at the choice and involvement of the user, not at your whim. I had to spend 40minutes manually backtracking and recopying, which was unpleasant.

Please note that while my above statements have had some negativity to them, I am a ardent supporter of Mozilla and will continue to be. These above points are that of increasing frustration. I am of the school of thought that we the users should have complete and fine-grain controls over every aspect of how our browser operates, whether it be UI elements or nitty-gritty functionality.

I look forward to responses by members of the dev team.

Thank You, Lex

I have been trying to locate the temporary file of the failed download video file. I was downloading a huge video file (78 GB) and the system froze in the middle of it. So I was forced to cut the power and restart the laptop. After restarting, I saw that my system drive is still filled with the temporary file (part), but I couldn't locate it and delete the temp file. It has taken up about 40 GB of my system drive space because the download was more than half way through.

When I started the download, I selected an external drive as the destination. However, I have been observing Firefox download behavior and I am pretty sure Firefox would download as much of the file to system drive as possible, until the system drive is full, then moving onto the destination drive, which has been a huge inconvenience, because of the huge video files that I am dealing with.

I have already cleared the file and the .part in the destination drive, but failed to locate the rest of the temp file in my system drive. I have searched the internet and found no mention of such problem. So I am seeking professional help here.

Attached is a screenshot showing how much space is used by checking the system drive properties, against the properties of all files in system drive (including hidden). The number doesn't add up, and there are 52 GB of files unlocated.