Firefox 技術支援討論區

During video playback or audio playback, the volume in my sound mixer will suddenly be lowered to below 80% inexplicably. This happens constantly. And I can in fact make it do it by putting a video back, for example. It appears to be whenever the sound element of firefox is stopped and started it will reset itself, today to around 71%, but other days or instances to 85%.

No other apps on my system are having this issue, so I'm not sure where to begin!

Thanks in advance for any ideas..

Any ideas what could be causing this quite bizarre issue?

I'm trying to sync my firefox account but everytime it appears, I have already did what it ask me to do in "Firefox Sync Verification Email FAQs" what do I do now? I need my bookmarks, GOD PLEASE.

I cannot access Mozilla via Firefox - issue arose when trying to access add-ons yesterday (25 Jan 2020). Firefox displays the following: "Secure Connection Failed

An error occurred during a connection to addons.mozilla.org. PR_END_OF_FILE_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the web site owners to inform them of this problem."

In order to post this, I have had to access the site via Chromium, which also noted a secure connection error. I have used a VPN add-on to secure the connection and access the site.

I assume this is an issue on the Mozilla server with an expired certificate?

When I click ctrl+q by mistake, the browser window with all its tabs is closed immediately, with no warning. This has already made me lose data. is there a way to disable this keyboard shortcut?

Sometimes, when I open the browser, ALL content is not drawn to the window size, as shown in the screenshot. In this case, mouse events are tracked as if everything was drawn correctly, i.e., to the entire size. Only resizing the window helps. How to fix this problem? This happens not only in KDE, but also in GNOME. Clearing the profile didn't help. Running without extensions too. Such a problem still sometimes occurs. OS: ArchLinux https://imgur.com/a/X7Ue9Al

https://support.mozilla.org/en-US/kb/containers seems to suggests that it's possible to hide all tabs in certain containers, but does not explain how to do that.

"Hide and Show: Assume you use your browser for both Work and Personal tasks. When you come home at the end of the day, you don’t want to be thinking about “Work” anymore, but your browser is full of Work tabs. You can “Hide” your Work tabs and proceed with your Personal tasks. Then the next day, when you are back at work, you can “Hide” your Personal tabs and “Show” your Work tabs."

On an aside, I'm also getting pretty confused between collections (mobile), containers (desktop), sessions, tab groups, etc... they all seem to have overlapping but different functionality.

Hi there, I run FF 73 on Lubuntu, and since the upgrade chrome://browser/content/places/places.xul is no longer found. I use it as a handy bookmarks and downloads manager within a tab. Error message:

"Firefox can't find the file at jar:file:///usr/lib/firefox/browser/omni.ja!/chrome/browser/content/browser/places/places.xul. "

I realize that this question is similar to https://support.mozilla.org/en-US/questions/1223548#answer-1127393 but it doesn't solve my issue. In fact the URI's listed also don't work I have found:

   chrome://browser/content/places/places.xul
   chrome://browser/content/places/bookmarksSidebar.xul
   chrome://browser/content/places/historySidebar.xul 

Please advise. Thanks for your help!

I installed Nightly hoping to be able to play videos. It worked for a while but has recently stopped. I have a screen shot with the error and the version of nightly. I am running Fedora 64 bit with the updates installed.

Hello! I am running firefox-esr version 68.5.0esr-1+b1 (from Debian testing) with a bunch of extensions (ublock origin, multi containers, suspend tab, open in browser, all in one sidebar, etc). Yesterday, I was suddenly unable to start firefox. I can see the profile manager and start another older profile, but not the one I really need to open. When I start from a terminal, I see this error message most of the time:

 ###!!! [Child][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost

I have created a new profile and started it with success; after copying all files from the faulty profile, the new one does not start.

I have tried to run with safe mode: still does not start.

I have found https://unix.stackexchange.com/questions/426502/firefox-keeps-crashing-upon-launch/466522 which doesn't help.

https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile shows me how to copy bookmarks and cookies over. (I am not using any synchronization service.) I would very much like not losing my session (open tabs), but I don't know which file or database is holding it.

I would prefer not to have to spend a lot of time reinstalling and reconfiguring all extensions, but maybe it will be necessary. Thanks for any help troubleshooting this.

Hello good people, This is rather a request for advice than an issue report. I' ve learned about the facebook container add-on and wanted to know if there is a need for it if someone was making sure to exclusively open facebook.com in its own profile. Say you set up a profile(from about:profiles) namely "BIg Brothers" for notorious trackers like google, facebook , twitter etc so they can perpetually track each other with simple rules to observe like : - Never open an external(shared) link - Never access any other website through that profile.

Is there a particular feature the add-on is bringing up that the native interface is missing ? The other reason is add-ons are great but they tend to bloat the system impeding the browsing experience. I am the kind of guy who opens 7 concurrent tabs each running heavy js code so the lighter the better.

Thank you in advance,

Dom

Firefox 75.0 has just been released. Address bar has been ruined with dynamic size and lines with increased height. For some unknown reason Mozilla developers think that taking away more vertical space will help their browser have "Focused, clean search experience that's optimized for smaller laptop screens" as they state in the release notes. Outrageous.

Now tell me how to go back to the old behavior.

I want a full horizontal length search result widget as it was before.

I DO NOT want an ENLARGED address bar while searching. Simply annoying that it changes its size and looks like popping out from the upper top toolbar every damn time I type something into it.

I want the ORIGINAL LINE HEIGHT of search results in the expanded address bar.

I want an address bar that doesn't expand when focused with Alt+D, like the old one.

I haven't found an about:config option to restore old behavior. However, a userChrome.css workaround is still good for me.

Is the a way to remove this new focused address bar? I want to be normal like in FireFox 74 the new style is so annoying.

https://support.mozilla.org/en-US/kb/search-firefox-address-bar

As of Firefox 75, the address bar plumps out in an "enlarged" state. This is a new feature of Firefox 75, announced here: https://blog.mozilla.org/blog/2020/04/07/latest-firefox-updates-address-bar-making-search-easier-than-ever/

I'm wondering: how can I revert this back to how it was? I don't want it to plump out since it partly covers up the surrounding UI elements. I have a muscle memory for sometimes minimizing this bar with Escape, then clicking one of my bookmarks or one of the UI elements. I haven't had an issue seeing the address bar before, so this new feature is a detriment to me.

Thank you

Firefox came preinstalled as snap package on ubuntu 18.04, but has been giving trouble since

I'm running through problems when downloading files:

The only way I can view a downloadable file is by saving it somewhere in my home directory and then open it which is a pain!

The open with dialog box only give url script handler and firefox browser as options neither of each work

On ubuntu support it was suggested to remove snap package and install deb package, but what's the point of a snap package then?

It look s like firefox doesn't handle anything beyond home directory, while as said above chrome does instead

Any clues

In the past I was able to set the setting ``` browser.urlbar.clickSelectsAll browser.urlbar.doubleClickSelectsAll ``` to disable that a single click into the address bar selects the whole url. Is it possible to achieve this with the new QuantumBar somehow?

I was messing around with Privacy & Security settings. Under Cookies & Site Data, I checked Delete Cookies & Site Data when Firefox closes. I've decided I don't like it and want to uncheck it. But now it's greyed out and I can't find any way to change it back. It says I'm in permanent private browsing mode. There MUST be a way to change this back to how it was! What is it???

I can't open a Spotify URI from Firefox But I can open it from command line using the --uri option. As in, this works fine from the terminal:

spotify --uri="spotify:artist:6OqhFYFJDnBBHas02HopPT"

and whatever Firefox is doing just launches Spotify without navigating to the thing indicated by the URI

Is there, perchance, a simple file edit I can do that will fix this for me?

I tried adding style to userChrome.css

@-moz-document url-prefix(about:blank) {

   * {
       background: black !important;
   }

}

and https://support.mozilla.org/en-US/questions/1106886 but both did not work. Dark mode extension works after loading a page but not before loading page in new tab.

Hello, I use Firefox 75.0 on an Ubuntu 18.04 system to access CAC enabled (smartcards) US government websites. Generally all works as desired. However, intermittently (couple times a day ---> once every few days) the browser simply, quietly refuses to allow the CAC to login, when I visit a CAC-secured site. A browser dialog is presented and asks for my PIN, but closes without error, yet the PIN is not accepted and the site (correctly) refuses access. In my troubleshooting, I found that if I look at the Security Devices tab under Privacy&Security, the PKCS#11 module shows the CAC as not logged in. If I attempt to log in at that page, I get the usual PIN dialog, but after submission, a new message box appears with the notice that "Log in failed", and I can see that module still says Log out.

It appears that some file lock or related mechanism is in effect and needs to be reset. The only solution I have been able to use is close Firefox completely (all windows), and restart. This works but not desired as I have several different sites I'm active on, and each requires separate logins.

Any suggestions for further troubleshooting would be appreciated. My forays into Google searches all end up as help to get CAC card working, which is not my problem. The card works until Firefox (or something related in the middleware) freezes and the only recourse is to restart.

Cheers, --Jim