Firefox 技術支援討論區

I have Windows 10, version 1903. I recently backed up my Mozilla Roaming and Local profiles to an external drive before replacing the hard drive in my laptop.

After replacing my hard drive with a new one, I restored an earlier image file of my computer in order to put back all my data onto the new drive.

Then I did a Fresh Start, effectively doing a new install of Windows 10 (v.1903).

(As far as I can tell, my old Firefox data was deleted during the Fresh Start reinstall.)

I now did a new install of Firefox onto my computer. After I opened it I synced. Because my favicons were not restored (a generic globe icon shows in their place instead), I'd like to load in my old saved profile and make that my default profile.

The problem: So I tried copying and pasting the saved profile ("bxfz7tby.default" ) back into the new Mozilla Roaming and Local profiles (e.g, into "C:\Users\,username>\AppData\Roaming\Mozilla\Firefox\Profiles\", but I can't get Firefox to access them. Instead, it only accesses the new profile it created.

I did an uninstall and tried it again, but all I ended up doing is creating another new profile. Now when I go to About:Profiles (see image), the default-release and default profiles listed don't seem to exist anymore (they aren't loadable, and they can't be found using the filepath noted there), and the actual backup profiles that I copied from my portable drive into Mozilla and that I actually see in File Explorer, doesn't show up as a profile choice.

How can I restore my old backed up profile? And if I do restore it successfully, will that also restore my missing favicons?

After the latest update, I can only download individual pdf’s & can not download a summary page of pdf’s. I have several other browsers- which will do the downloads-MUCH prefer Firefox! This is a very recent occurrence, Firefox was working well prior to about a week ago... Please HELP!!! J.

Facebook videos taken in portrait mode won't play in Firefox. I can copy and paste the URL in the Chrome browser and they play fine.

Any fix for this or do I have to change my browser of choice?

A while back, I discovered a Google plugin hidden within Firefox. I figured maybe one thing was fine until I realized that Widevine actually did some bad stuff to your OS, since it needs to access the internal OS to block screenshots and screen recordings. Today, I discovered that geolocation also uses Google servers, and in the process of turning it off I also discovered that there is this "Safe Browsing" that also uses Google. Looking even further, even some of the privacy things redirect to Google. I haven't even mentioned that the default search engine is Google. Even if Google paid you to make them the default, you could create a prompt on the first launch asking for search engine, with Google selected by default but another search engine (like DDG) recommended. All of this Google software is likely sucking on our data.

Now while writing this post, I noticed something even worse. Why are Google servers on the filter whitelists? This is uncool. I understand, maybe your website needs to detect Firefox to function correctly, and antifingerprint would break it. But WHY GOOGLE? All of this seems to be going against the goal of privacy. How are you supposed to expect a random person to go directly to about:add-ons, disable Google Widevine, go to about:preferences, disable safe browsing, go to about:config, enter the "danger" zone confidently, and delete Google from the 10,000 times it appears in the config?

COPY PASTE not working with Avast web sheild turned on and using the browser Firefox.

My OS is Catalina. Currently 10.15.6 My Firefox is 79.0 My Avast is 14.5 with only the 3 most fundamental core shields (email. web. and file)

Copy and paste is broken within Firefox when you have the Avast Web Shield enabled. While its enabled, other browsers do not have the same issue. Copy and paste in Safari and Chrome works fine. If you turn off the web sheild in Avast you must close and re-open the Firefox Browser and the issue is gone.

The Firefox reset/refresh that i tried, based on another post, only really disables the web shield for a small time, when avast refreshes it puts it back. So its not fixing the issue, its temporarily disabling it.

Its rather aggravating. Anyone solved it? Im posting on both FF and Avast forums.

It's so frustrating that the keyboard shortcut for closing tabs is right beside the one to quit Firefox. I've lost countless hours because of this, and it's so easy to accidentally do. Is there a way to keep this from happening? A simple "Are you sure" confirmation dialog would be great, or I really like the Chrome "hold command-Q" to exit feature. This seemingly simple function is proving extremely difficult to accomplish.

Yes, I'm aware of session restore, but (1) It does not preserve my window arrangement. I use multiple desktops for various tasks, and they each have related browser windows. (2) I need to see webpages exactly as they were when I opened them. Sessions expire, dynamic pages are refreshed, content is removed etc. That is all lost.

I do not want to disable session restore completely. It can still be useful. But, I do not want to trigger session restore automatically every time. Manual activation is ideal.

regarding: "browser.tabs.warnOnClose" I do not want a warning for closing multiple tabs. I often have many windows open and that warning gets annoying. It also doesn't prevent me from accidentally quitting when I only have one tab open.

I tried setting browser.warnOnQuit to true, but it's ignored.

I simply want a confirmation when I use the keyboard shortcut to QUIT. That's it. No side effects. Can Firefox do this?

Hello,

Since the last update, I noticed that the check-boxes were not checked after clicking.

Test on firefox https://user-media-prod-cdn.itsre-sumo.mozilla.net/uploads/images/2020-07-27-06-56-15-0d55a4.png

Test on chrome https://user-media-prod-cdn.itsre-sumo.mozilla.net/uploads/images/2020-07-27-06-56-38-2bb3a6.png

I recently transitioned from Windows 10 to elementary OS. Video playback in sites other than youtube (facebook, messenger, news) are very choppy, audio is okay though.

tried playing around with and disabling "use recommended performance settings", no changes.

please help.

I have had Firefox set to delete cookies upon closure for several years now. I recently noticed that some cookies were present as soon as the browser was opened, which should not be happening.

This set of cookies reappears every time I open Firefox, even if I manually delete all the cookies, and even if I delete the cookies.sqlite file in between closing Firefox and reopening it.

This problem occurs on two machines with Firefox. One with Windows 7 and one with Windows 10. I have Sync configured to keep bookmarks the same on both machines. I was wondering if this may have something to do with it, as the same set of 'zombie cookies' keeps reappearing on both machines?

Extended desktop, two different PCs, vertical layout.

Upon opening Firefox a white bar appears across the bottom of the top screen and the only way to get rid of it is to hit F11 (Fullscreen) twice. Minimizing, maximizing, restoring all have no effect - only taking it from a normal window to Fullscreen view (no menu bar or tabs), then back to a normal window works.

It happens on every new window opened and it doesn't matter which display it is opened on, the bar will be there if moved to the bottom screen, until F11 is pushed for that instance of Firefox twice.

This has happened before and it would seem to go away on later updates, but it is currently visible on every computer I have that has one display above another.

Firefox 78.1 ESR W7

Is there any way to get the menu bar to have a unified appearance? Solid background mixed with a transparent one is not very nice looking. It would look much better if the solid background were also transparent. Anyone have a .css or other solution?

I dual booted Ubuntu 19.10 in my laptop alongside Windows 10. The videos in my Firefox browser (on Ubuntu) lags in between, it plays smoothly and after sometime it lags. The lagging is not so worse, but still it disturbs me from watching the video. If I play the same video in Windows in Firefox the video plays well. The main problem is with the site ' www.geeksforgeeks.org ' in Ubuntu (Linux) and the same site plays well in Windows Firefox. I have tried fixes like : 1) 'set media.benchmark.vp9.fps = 0' 2) https://support.mozilla.org/en-US/questions/1245735 but they didn't work.

System specs : 8gb of RAM 4gb of Dedicated Graphics card of AMD Radeon RX 560X AMD Ryzen 5-3550H processor

Hi - I'm having an issue with Firefox, well its been ongoing for some weeks but just getting around to it..

My problem is that Firefow will not download files. I have tried the trouble shooting steps and its not a firewall issue because my other browsers will download - as a developer I have all the major browsers installed.

Also I changed the settings to have Firefox request the download folder for each downlod - but it doesn't. Anyway I am about to reinstall will post back then.

Maybe should have done that first.

C.

Good morning all I am new in this house. Guido van Wijk, application engineer at RDC in Amsterdam (rdc.nl). We host large internet applications for the automotive industry in the Netherlands. Java based. 8.000 users. In this web-applications html, exit buttons are built-in to return to user-menu's where our customer (automotive company's such as car-dealers) can make an new choice to enter a new application. These exit-buttons perform wel under FireFox 78.x. The men is shown. Since the Firefox 79.0 update these buttons do not function anymore. Either the application-screen stays untouched (as the menu should be shown) or a full white screen is shown. Whic is also wrong. I have tested with an older Ffox 78.0 version on another PC and then everything works fine. What's going on here. I am not an software engineer.

The images show an example of 1 of our web-apps, OKR with the uitlogbutton, logout. And the usermenu which should be shown then. This works Ok with Ffox 78, not anymore with 79.0

I seem to have a 'bug' being introduced through firefox when I view youtube videos. it does not happen right away, it takes a few videos to happen. The partial solution I have found so far (having done this twice so far in almost as many days, and about to do it a second in one day.) is to do a complete uninstall of firefox, then do a windows defender offline scan (which seems to knock out whatever is left in the machine, it won't tell me what was found.) then to come back into win10 and doing a clean install which seems to work well enough (having multiple tabs open [I do miss being able to have large numbers of open tabs and not having my machine going nuts]) till I break down and check the youtube channels that I like to keep up with. main noticeable symptom is my machines cooling fan going into 'hyper' drive, then checking task manager and finding firefox using almost two gigs of memory and 40+% of cpu capacity. As I type this, with just one tab open, firefox is showing 563.3 MB and seven (7) sub? programs running. Before this latest flair up, for one tab open it would be under 400MB and five programs running?

Add-ons I run on Firefox: uBlock Origin, Adblock Plus, and DuckDuckGo Privacy Essentials

My system: AMD A9-9425 RadeonR5,5 Compute Cores 2C+3G 3,10GHz

                   8GB of ram 7.45 usable
                   WIN 10 Home Ver. 1909         {64 bit}
                  OS Build 18363.997

FF with no tabs, add-ons or browsers open establishes a connection to the following

104.16.248.249:https (ESTABLISHED) ec2-52-27-98-21.us-west-2.compute.amazonaws.com:https (ESTABLISHED)

Why is this occurring?

I mean, all web videos, include Youtube, Pornhub, Bilibili, etc, once I click the fullscreen button, it will crash in a short time. I have disabled flash already, it doesn't help.

Hi,

From two to three weeks ago, every time I open windows, my firefox browser reboots twice. It does not give any error message and when it reboots it goes back to home page. I removed all extensions, then I updated the browser and the Graphic Card, in vain!

Any help please