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Backspace keyboard button no longer emulates "Back" browser button

I think the title covers it. Until recently, pressing the <Backspace> key on the keyboard would take me back to the previous webpage. Now it doesn't. Using FF v87 i… (xem thêm)

I think the title covers it. Until recently, pressing the <Backspace> key on the keyboard would take me back to the previous webpage. Now it doesn't.

Using FF v87 in Win10 Home.

Đã được hỏi bởi MyUsernameHere 1 năm trước

Đã được trả lời bởi TyDraniu 1 năm trước

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How can I fix firefox tabs crashing?

Ever since the end of February Firefox has had a habit of crashing on me at random, usually just a tab or so but there's been times where the whole browser just ups and c… (xem thêm)

Ever since the end of February Firefox has had a habit of crashing on me at random, usually just a tab or so but there's been times where the whole browser just ups and crashes. I am using Firefox 73.0.1 (64-bit) on a Windows 7 Professional computer.

1. This mainly occurs when viewing a video (mostly Youtube), scrolling down on pages, or opening or switching to a new tab.

2. Beforehand if there were issues it would take a few seconds to load the tab, now it just instantly crashes.

3. I've tried uninstalling and re-installing, clearing everything, turning off add-ons, and changing options and nothing has worked. At best, I've stopped it from crashing on launch and disabling add-ons.

4. This issue does not happen on other browsers, nor has my computer shown any unusual behavior.

5. It did not start immediately with the new update, which I got the 20th. It started occurring a week or so after.

Đã được hỏi bởi krazykopter96 2 năm trước

Đã được trả lời bởi krazykopter96 2 năm trước

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Drop down lists not working

Recently I have noticed that where there are drop down lists on websites I visit the drop down function no longer works properly if I am using the Firefox browser. If I c… (xem thêm)

Recently I have noticed that where there are drop down lists on websites I visit the drop down function no longer works properly if I am using the Firefox browser. If I click on the arrow in a drop down list box the list briefly appears then disappears almost immediately making impossible to select an option from that list. I don't have this problem if I use any other browser like Safari and the drop down list function used to work on Firefox, so presumably this is a bug unless there is something in preferences that needs changing. I am using v88.0.1 on mac OS Sierra 10.12.6. Any help wud be appreciated

Đã được hỏi bởi gary.mitchell 1 năm trước

Đã được trả lời bởi FredMcD 1 năm trước

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How to isolate one instance of FirefoxCP Web Content on my MacBook Pro

My MacBook Pro is running OS 11.0.1 and using Firefox 83.0. My battery runs down faster than it used to. Apple suggested checking the Activity monitor and I noticed sever… (xem thêm)

My MacBook Pro is running OS 11.0.1 and using Firefox 83.0. My battery runs down faster than it used to. Apple suggested checking the Activity monitor and I noticed several instances of FirefoxCP Web Content. I have lots of tabs open. Most of them are using <1% of CPU, but one is about 50%. Is there any way to figure out what that is other than shutting down the tabs one at a time and watching the Activity Monitor?

Đã được hỏi bởi jerryalevin 1 năm trước

Đã được trả lời bởi TyDraniu 1 năm trước

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MEDIA_ERR_SRC_NOT_SUPPORTED

Hi, Could you please help me??? Since i uninstall Flash player in January, i have a lot issue to watch a video on Mozilla! For a lot of website (facebook included) the v… (xem thêm)

Hi,

Could you please help me???

Since i uninstall Flash player in January, i have a lot issue to watch a video on Mozilla! For a lot of website (facebook included) the video doesn't load. On Youtube i can watch a video but not the lives. Also I had few time this error message : MEDIA_ERR_SRC_NOT_SUPPORTED

I already tried to uninstall Firefox and install again.

BTW i'm on Windows 10, not on Linux.

Đã được hỏi bởi toms_666 1 năm trước

Đã được trả lời bởi FredMcD 1 năm trước

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Firefox does not load any pages or settings or login for firefox account

Hi everyone, Thanks a lot for taking time reading this! :) I have the following problem with my firefox on Kubuntu 20.04 on my laptop: since a couple of weeks, firefox op… (xem thêm)

Hi everyone,

Thanks a lot for taking time reading this! :)

I have the following problem with my firefox on Kubuntu 20.04 on my laptop: since a couple of weeks, firefox opens normaly after rebooting, remembered all tabs and my firefox account etc., but it's just not loading anything. I can still type in a web adress or something in the search, I can also still select the drop-down menu on the right ("Open menu") and select e.g. "Settings", but nothing happens afterwords. Same problem for all websites. Some of the main buttons are also not functional (refresh, back/forward). I attached a screenshot from the "empty" firefox (but not sure if that's of any help anyways ;) ).

I tested a couple of things so far, nothing helped:

1) Internet is working, I tested ping, apt is working as well as a differnt browser I installed now).

2) I reinstalled firefox completely by running the following commands:

      sudo apt update
      sudo apt purge firefox // sudo apt --purge autoremove firefox
      sudo rm -rf .mozilla
      reboot
      sudo apt update
      sudo apt install firefox
      (Since I removed the profile folder, the standard tab and bookmarks open/show after starting firefox now, as expeced. I'm also not longer logged in.)

3) By starting firefox via the console, no error messages were shown

4) I created a second ubuntu unser profile, to test if firefox would work there: it doesn't

5) Since I have a dualboot with Win10/Kubuntu 20.04, I started Windows and tested firefox there: it is working as usual.

6) I also obviously tried to google this problem, but either I put the wrong keywords in or this problem is pretty unique/new?

If you need any further information on my system, I'm happy to provide them! Thanks a lot for any recommendations and further ideas, what to do! I'm pretty much desperate for a solution by now, as during home office a not well working system is a pain! ;)

Thanks and stay safe, Katrin

Đã được hỏi bởi Kaddi 1 năm trước

Đã được trả lời bởi TyDraniu 1 năm trước

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Fire Fox is really slow to start

Hello my number 1 browser community. I have a problem with fire fox starting super slow. I use firefox nightly(i love it!) but i tried all the stuff in the solutions area… (xem thêm)

Hello my number 1 browser community. I have a problem with fire fox starting super slow. I use firefox nightly(i love it!) but i tried all the stuff in the solutions area for fixing slow start up but none of them help. I always use only 2 add ons and they are the same add ons i have been using for years. i have had this problem for like almost 2 years and i dont know what to do. i tried re-installing, refreshing, clearing cache, safe mode but nothing fixes it. The 2 add ons i use is ublock origin and https everywhere, please help me guys cause sometimes it takes up to even 4 mins for firefox to start.

Đã được hỏi bởi miggz 1 năm trước

Đã được trả lời bởi ·´¯`·...¸>-)))º> ~dbben 1 năm trước

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Your Firefox profile cannot be loaded. It may be missing or inaccessible.

My Firefox will not open no matter what I try because it continuously tells me, "Your Firefox profile cannot be loaded. It may be missing or inaccessible." This error sta… (xem thêm)

My Firefox will not open no matter what I try because it continuously tells me, "Your Firefox profile cannot be loaded. It may be missing or inaccessible."

This error started happening because my Firefox originally wasn't saving the add-ons that I was trying to add. If I closed my browser and opened another one it would be gone. I tried refreshing the browser but that didn't help. I eventually tried reinstalling to see if that would fix the issue and then this error popped up and now I cannot stop it.

I tried reinstalling. I tried deleting the profile out of appdata, etc in hopes it would make a fresh one. I tried making a new profile by running it without opening the browser only to be given an error that doesn't save it. I'm at a loss on how to get my Firefox working again. It is my favorite browser and this is the first time I've ever really had a severe problem with it. Help!

Đã được hỏi bởi appletree278 1 năm trước

Đã được trả lời bởi jscher2000 - Support Volunteer 1 năm trước

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XULRunner Error "91.2.0 not compatible with min > = 91.0, max < = 91.0

Firefox updated. After updating, whenever I try and load Firefox, I receive the following error message: "XULRunner "Error: Platform version '91.0.2' is not compatible wi… (xem thêm)

Firefox updated. After updating, whenever I try and load Firefox, I receive the following error message:

"XULRunner

"Error: Platform version '91.0.2' is not compatible with "minVersion > = 91.0 "maxVersion < = 91.0"

I click, "OK" to confirm... and Firefox closes. When I try to update Firefox once more, I receive no response from teh System. When I try to load MaintanceService, I receive no response. What's teh deal here. Any answers?

Đã được hỏi bởi chudbabies 10 tháng trước

Đã được trả lời bởi cor-el 10 tháng trước

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firefox lagging due to high cpu usage

Hi all, I've been having problems with firefox lagging constantly. General browsing around feels laggy - and opening new tabs pretty much causes my computer to freeze for… (xem thêm)

Hi all,

I've been having problems with firefox lagging constantly. General browsing around feels laggy - and opening new tabs pretty much causes my computer to freeze for a few seconds. During this time firefox causes the CPU to spike to 100% usage.

I've been using firefox for years on this computer with no issues. Hardware is pretty good (i7 5820k, 64GB of ram and an SSD).

So far I have tried:

  • Running in safe mode
  • Using a different profile
  • Downgrading to an older firefox
  • Changing allowed CPU cores from 8, to 4
  • Updated graphic card drivers to latest version

None of these work, and I'm getting a bit tired of the constant slow downs. Chrome works flawlessly, as does all my other software...

Any ideas?

Thanks!

Đã được hỏi bởi agouranga 1 năm trước

Đã được trả lời bởi agouranga 1 năm trước

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Yahoo! Mail, Gmail and Google Are Not Loading with Firefox 87.0 (64-bit) - Firefox Reinstallation on 3/25/21 Didn't Fix Problem

Yahoo! Mail, Gmail and Google Are Not Loading with Firefox 87.0 (64-bit). Firefox Reinstallation on 3/25/21 Didn't Fix Problem. Here is the error message when trying … (xem thêm)

Yahoo! Mail, Gmail and Google Are Not Loading with Firefox 87.0 (64-bit). Firefox Reinstallation on 3/25/21 Didn't Fix Problem. Here is the error message when trying to load Yahoo! Mail:

Secure Connection Failed

An error occurred during a connection to login.yahoo.com. 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 website owners to inform them of this problem.

Đã được hỏi bởi edrcpa 1 năm trước

Đã được trả lời bởi cor-el 1 năm trước

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DRM content won't play

After installing the DRM content through the browser I still cannot play any videos on Netflix or Udemy. I have run this website (https://www.jeffersonscher.com/sumo/htm… (xem thêm)

After installing the DRM content through the browser I still cannot play any videos on Netflix or Udemy.

I have run this website (https://www.jeffersonscher.com/sumo/html5-video.html) from previous answers to check and the results are attached to the question.

I have also checked media.eme.enabled and it is set to true.

I am very much puzzled by this.

Đã được hỏi bởi Alex 1 năm trước

Đã được trả lời bởi jonzn4SUSE 1 năm trước

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SSL_ERROR_BAD_MAC_ALERT

A couple users at our site intermittently receive a SSL_ERROR_BAD_MAC_ALERT error when navigating to Google in Firefox. This happens in Version 99.0.1 (64-bit) on Windows… (xem thêm)

A couple users at our site intermittently receive a SSL_ERROR_BAD_MAC_ALERT error when navigating to Google in Firefox. This happens in Version 99.0.1 (64-bit) on Windows 10 computers. When the issue occurs, users can navigate to other websites without issues. Navigating to Google in a different browser works no problem. Restarting the browser will resolve the issue. Clearing cookies and site data has no effect. Users can also refresh the page after some time and the issue will go away.

Any idea as to why this is happening?

Đã được hỏi bởi krisa15 2 tháng trước

Đã được trả lời bởi cor-el 1 tháng trước

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Not loading any pages and cant can't open settings

Yesterday I was using Firefox normally (browsing, Discord, etc.). Today when I opened it, it wouldn't load any page. If I type something in the adress bar it will auto-co… (xem thêm)

Yesterday I was using Firefox normally (browsing, Discord, etc.). Today when I opened it, it wouldn't load any page. If I type something in the adress bar it will auto-complete or show suggestions based on google, but when I hit enter, nothing happens. It doesn't even try to load anything. I also can't go into options. When I click on the options button, nothing happens. I am not running in any compatibility modes. I have tried reinstalling Firefox, didn't help. I am not using any add-ons. I have done several virus searches. Other browsers work fine. I'm running out of ideas now, that's why I'm doing this post.

Đã được hỏi bởi blockbuster2033 1 năm trước

Đã được trả lời bởi blockbuster2033 1 năm trước

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Firefox keep redirecting localhost to www or www.localhost:8000

Hi, I'm using Firefox 85.0.2(64-bit) Windows 10 While I'm testing local testing for website, whenever I typed/entered localhost OR localhost:8000 Firefox keep redirecting… (xem thêm)

Hi, I'm using Firefox 85.0.2(64-bit) Windows 10

While I'm testing local testing for website, whenever I typed/entered localhost OR localhost:8000 Firefox keep redirecting/guesing subdomain for it(which="www"). Made my testing messed up.

There's same issue on https://support.mozilla.org/en-US/questions/1216065 None of those work.

set: browser.fixup.alternate.enabled to false or Connection Settings with No proxy

Please, stop. Chrome and Edge behave normally. This site need darkmode :/

Đã được hỏi bởi prothegee 1 năm trước

Đã được trả lời bởi prothegee 1 năm trước

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Firefox doesn't support HTML5 while other Browsers do. Latest Ubuntu 20.04. LTS

So the problem is that Firefox doesn't play any HTML5 content. Weirdly except for Youtube. Youtube works just fine. But every other Website shows errors. Even songsterr.c… (xem thêm)

So the problem is that Firefox doesn't play any HTML5 content. Weirdly except for Youtube. Youtube works just fine. But every other Website shows errors. Even songsterr.com. I'm using latest Firefox 76.0.1 on a recent Ubuntu 20. 04 LTS installation. Usual troubleshooting like updates doesnt work because "sudo apt-get upgrade" doesn't find any updates. I tried the same websites in the latest version of Chromium and they work perfectly fine. I couldn't find a mistake in the firefox settings or something so I'm confused. Disabling Plugins didn't change anything and turning of tracking protection didn't either. What is the Problem here and how can I solve it?

Đã được hỏi bởi wauwufflp 2 năm trước

Đã được trả lời bởi cor-el 2 năm trước

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Video playback "Video can't be played because the file is corrupt" despite the file being perfectly fine.

So I've noticed how some video files are able to be played back in Firefox. Some are not able to what so ever, for example I've created a text video using this FFPMEG com… (xem thêm)

So I've noticed how some video files are able to be played back in Firefox. Some are not able to what so ever, for example I've created a text video using this FFPMEG command: ffmpeg -f lavfi -i testsrc=duration=10:size=1280x720:rate=30 testsrc.mp4

which created the following file: https://astolfo.nl/i/z2ada.mp4 Both the uploaded version and the local .mp4 are unable to be played back in Firefox. However opening them up in edge chromium both files play back perfectly. Besides Edge I've also confirmed it plays back nicely in MPV.

I've tried Hardware acceleration, but both having it on and off did not change the fact that these files wouldn't want to playback in Firefox. Safe mode also did not effect this issue.

Đã được hỏi bởi dapal003 1 năm trước

Đã được trả lời bởi jscher2000 - Support Volunteer 1 năm trước

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My address bar does not work after the Firefox 78 update.

Firefox 78 was installed last night. As of now I cannot get the address bar to work. When I type a URL and hit return nothing happens nor does clicking on the arrow do an… (xem thêm)

Firefox 78 was installed last night. As of now I cannot get the address bar to work. When I type a URL and hit return nothing happens nor does clicking on the arrow do anything. Please let me know how to resolve this issue.

Đã được hỏi bởi mlbirk 2 năm trước

Đã được trả lời bởi jscher2000 - Support Volunteer 2 năm trước

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Problem loading Google Drive

Hi there, We use GMail/ Calendar/ Drive for our business. On the official account, I am seeing a continuous - multi-day - situation where my Google Drive won't load when… (xem thêm)

Hi there,

We use GMail/ Calendar/ Drive for our business. On the official account, I am seeing a continuous - multi-day - situation where my Google Drive won't load when I point my browser to it unless I do at least one refresh after getting to Drive and waiting for my list of folders and documents to show up.

In the mean time, the following error shows upon on the bottom left of my screen - "The server encountered an error. Please try again later." - this has persisted for over 2 weeks when I restarted using Fiefox earlier this month. I do not get this error when using Chrome or Safari.

Today, I am also not able to see the user who last modified a document or a folder last, as you can see in the image below.

Please tell me what I can do to fix this issue.

Thanks, Mahesh

Đã được hỏi bởi Mahesh Singh 1 năm trước

Đã được trả lời bởi cor-el 1 năm trước

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Constant disk activity

Why is Firefox 78 writing to disk constantly? Even when the browser is idle, the hard drive light on my computer blinks non-stop, and I can hear the constant noise coming… (xem thêm)

Why is Firefox 78 writing to disk constantly? Even when the browser is idle, the hard drive light on my computer blinks non-stop, and I can hear the constant noise coming from the hard drive. The problem is with the browser because the Processor Explorer (available from Microsoft) shows Firefox as doing the constant disk activity, and hard drive stops making noise when the browser is closed.

Đã được hỏi bởi bakensobek 1 năm trước

Đã được trả lời bởi bakensobek 1 năm trước