Firefox 技術支援討論區

I know there's [[an article|https://support.mozilla.org/en-US/kb/sync-custom-preferences#w_sync-custom-preferences]] on how to sync custom preferences. I wanted to sync my toolbar customizations and some other preferences like disabling disk caching. And I don't even have other firefox instances, instead I just want to sync only on one device, so that I can continue the same setup when I signin later on the same device.

I've tried to add services.sync.prefs.sync.browser.uiCustomization.state, "services.sync.prefs.sync.browser.cache.disk.enable" and set it to true. But it doesn't work. What am I missing? No one seems to address this. May I am missing something.

Upgraded to version 101.0 after getting the pop-up prompt and now every site I visit is taking at least twice as long to load and display compared to yesterday. (Even this support site!)

It has to be something in this release and not my connection, because:

• My mail client is completely unaffected and is behaving normally.
• I tried accessing the sites that were loading/displaying slowest using Opera, and they loaded as fast as they had in Firefox previously.
• Nothing else that uses my internet connection is working any differently than yesterday.

I also cleared the Firefox cache. No improvement.

It's not my add-ons because the only one I have installed is uBlock, which is recommended in various help articles here at the support site.

Nothing in the knowledge base has proven helpful.

Is anyone else having this problem? Is there some tweak I need to make in about:config to fix this? Or is this another case of "wait until the next release", yet again???

I keep trying to add Honey extension using Firefox. It shows that I have downloaded the extension, but it is not working. I know I am doing something wrong, but I don't know what it is. Thank you!

I am trying to add a secondary email address (a Zoho email address) to my Firefox account (my primary is a gmail address). I receive the verification code in zoho email. I enter the verification code into the required space for Firefox to verify and accept that I am me and that's my email, and I get an error message that the code is invalid.

    I did this twice.  I checked that I entered the info correctly.  I entered the code within the 5-minute timeframe.  Both times I got the same message - the code is invalid.  It will not verify my secondary email address.  
   Very frustrating.

I would like Firefox to remember exceptions and store specific cookies that I need for the Microsoft authenticator, and other two-stage logins. Whatever setting I choose (untick delete cookiex and sitedata, assign websites to manage exceptions etc) upon closing Firefox everything is deleted, always. This means I can't use any authenticator to remember me when I want it to do so.

I used a third party cookie extension (Cookie AutoDelete) to whitelist some sites and it worked perfectly fine until an apparent recent update by Firefox. I am on Firefox 101.0.1 on Mac.

Any ideas?

I am trying to set youtube to always open in Youtube container , when i right click on the logo or name of the container it doesn't do anything , at previous version was fine , is there any issue with current version ? is there another way to enable youtube to open always in it's own container ?

Hello Everyone,

After inserting the proxy information, webpages in the container tab refuse to load/connect, I insert the IP address and I've also tried the Fully qualified domain name, using the type://host:port syntax, I get "The proxy server is refusing connections" and "The connection has timed out" error messages.

If I setup the proxy via the settings menu the entire browser uses the proxy server address, I am trying to specify a different proxy server for each container.

Every time I run browser it messages me that downloaded file contains a virus or malware, even I deleted the file long time ago. I tried Ctrl+J "Remove from history", "Clear downloads" and Organize/Delete that entry - Nothing helps. Its deleting, but when I run Firefox its appears again and again. This bug is terrible annoying, please fix it.

Hi, just bought a new laptop which is loaded with windows 11, and I cannot download Surfshark vpn, I go to google and it will not even open any surfshark page, I assumed it must be something to do with safesearch, so I clicked on the safesearch button but it does not give me the option to turn it off it just states 'You don't have permission to change your SafeSearch setting. It's locked by the device or network that you are browsing on' !! how do I get over this? any help appreciated,

I want to select multiple Tabs from a bookmark folder to open in the background.

On Chrome this used to be quite easy: Just open the Dropdown, click whichever tabs you wanted to open with the Mousewheel and done.

On Firefox you need to enable new tabs to open in Background first. I managed to find the setting for that with google after a while. You need to go to advanced settings by typing about:config into your url bar.

Then you search for browser.tabs.loadBookmarksInBackground and click "enable".

But this didn't fix the other issue I had, that the dropdown menu always closes as soon as I click anything.

Is there a way so it stays open until I'm done selecting the pages I want?

I have tried numerous times to copy over the contents of my Firefox default profile folder from a Windows 10 PC to a new Windows 11 PC. I followed all the instructions as far as I know (when either saving or pasting the folder contents, Firefox is off; successfully downloaded and installed Firefox on new PC creating a new default profile which is where I pasted the contents from previous PC's profile, etc.) When Firefox is restarted on the new PC, it is just the same as the new installation -- no bookmarks from the old profile show up, e.g.).

Any ideas for how to get this to work are greatly appreciated. I have a lot of bookmarks and need to be able to access them on new PC. (BTW, this approach worked just fine when I installed a new disk drive on the old PC about 5 years ago and brought all the Firefox profile data over - everything came over as expected. I wouldn't think the fact that this is a Windows 10 to Windows 11 porting has anything to do with it not working -- these are just profile folders.)

Would Synching the two PCs work better? Does Synch just add all the profile and password data on the two PCs together so that each ends up with the total of what was on the two individual PCs and nothing on either is lost? When I looked at Synch on new PC, it was not clear how to get it to point to the old PC - Add a New Device just seemed to point to a phone. Again, any help is much appreciated.

When I look up the error message I get, everyone I see who got it can't open Firefox, but I can open it fine. For me, I have Firefox as my default browser and when another program (tModLoader on Steam) tries to open it, it gives me "Profile Missing," "Your Firefox profile cannot be loaded. It may be missing or inaccessible." I don't know if it gives the same error for other programs because I can't think of any programs that open my default browser. When I switch my default browser to Edge, the program can open Edge fine.

About two days ago the cursor started disappearing / flashing when browsing in Firefox. It does not mater where the cursor is placed on the screen either the arrow or the hand will flash when moving. My system is a windows pro 10 system with all updates, last updates for W10 were made a couple of weeks ago, on Firefox whenever it asks to upgrade I do it.

Specifically: 1. If the mouse is stationary there is no cursor, if I move it the cursor flashes. 2. When the system comes up and I launch Firefox all is OK for about 2 – 3 minutes then the flashing begins. 3. If I stop Firefox ie “X” it and restart it the flashing occurs within 0 – 30 seconds. 4. If I restart the PC steps 2 & 3 repeat.

I have two other PC’s Windows Home, and Windows 7, as well as a laptop with Windows Home all with Firefox 101.0.1 all up to date all do not have the above issue. This does not occur with any other programs. I have two monitors, tried Firefox on each makes no difference same problem.

I have tried searching the internet and all I find is about Caret which is off. I uninstalled Firefox and installed it. That made no difference.

Any assistance will be appreciated.

Thank You

Bob

I am trying to download a spreadsheet file which has a .xlsx extension. Firefox insists on downloading the file (my default action) but I want to be given the option to open in my spreadsheet program (Libreoffice).

Looking in Settings and scrolling down to Files and Applications -> Applications, there are other spreadsheet formats present but not one for .xlsx. How do I add the "Always Ask" option for .xlsx files?

Libreoffice is the default system application for opening these files.

I started up my computer today; I tried to open up a youtube video in picture-in-picture add-on, but it wasn't there. I restarted my computer, completely closed firefox, looked into settings for the picture-in-picture settings that are supposed to be under 'Browsing' in General but I can't find the settings for it there either. I have tried using other video sites, but nothing works.

No matter what i do this is not working. googled alot but still. my mind at this point hurts been trying to make it work for months , one time it worked but broke again. i also use edge and it works flawlessly there.

So these are my current settings. 1. Enhanced tracking protection - Strict 2. Do not track- only when firefox is set to lock known trackers 3.Cookies and site Data - (ticked) Delete cookies and site data when firefox is closed .

  Manage Exceptions - i wrote github.com, steamcommunity.com, and many more but does not work

4.login and passwords - everything off 5. History- Use Custom settings for history

   (Unticked) Always use private browsing mode, Remember browsing and download history, remember search and form istory

(ticked) Clear history when fiefox closes -- In settings--everything ticked except -- browsing & download history, cookies, site setting, offline website data.

Please help.

My old PC still shows up on sync. I can't remove it because I took it apart when I built my current PC to reuse some parts. Is there a way to remove it from sync or am I stuck with it showing up?

This isn't a question about the "Multi-Account Containers" addons, I am pretty sure that there was a section called "Container tabs" in the privacy and security settings, and I could use containers without installing an addon some days ago.

I can still access by directly viewing this address

about:preferences#containers

But I can't find it in the settings, and this feature does no longer work.

So I went to read recent release notes from Firefox 100 to 101.0.1, but I didn't find any notes to say this feature has been disabled. Could this be an unexpected result of an update?