Firefox Support Forum

Hello, I personally dislike the new address bar (also known as Megabar), mainly because it is enlarged without any user intervention, even if I only want to open a bookmark without typing anything in there.

Is there a setting in about:config to disable focus in the address bar for new tabs? Thanks.

Hello,

I urgently ;-) need a shortcut to switch between open browser windows. It seems to be one of the basic ones, but is nowhere to be found.

Solutions using Tilde do not work for me becuse it's not available on my Apple keyboard.

Why not use Command +< or Command + > respectively, like many other apps do?

And why not at least let me configure that in a simple fashion myself???

Thanks for any solution!

Hello all,

I have been experiencing a critical issue with FF for more than a year now and even though I reported it via the FF crash reporter numerous times it never got fixed so I figured I would report it here.

The issue could be summarized as follow: browsing the website mixcloud.com triggers a memory leak from FF that eventually causes my whole computer to shut down if FF cannot be "force[d] to quit" in time.

Here is a more detailed description I sent to Mixcloud support last year:

"Often times when I open a new page/tab on the website the loading freezes and after a few seconds a yellow warning notification pops up on the upper part of the screen asking: "a web page is slowing down your browser. What would like to do?” with the two following options available: "Stop it" or "Wait". If I click "stop it" the loading will indeed stop and I just have to refresh the page again to continue browsing normally. The troubles begin if I click "wait" or do nothing: the overall memory usage of Firefox will then increase seemingly exponentially and after only a few minutes the whole system will become unresponsive and I will have to hard reboot my computer or it will reboot by itself. This is extremely annoying as you can imagine as every time that happens I lose all unsaved data in the process! Strangely enough this issue sometimes even occur without any notification displayed or freeze happening in the first place: I would be browsing a few Mixcloud pages then switching to another website and after a couple of minutes I would notice that the memory usage is increasing although no Mixcloud page is open any longer... In both cases the only solution I found is to quit/force to quit Firefox as soon as possible to prevent it (and the system) to become unresponsive. Closing the application always resolves the issue and I can see the memory usage of the overall system subsequently dropping sometimes from up to 95% to 40% in the Activity Monitor app. Again I would like to stress that I have been experiencing this issue ONLY on Mixcloud and that I have no other memory related issue on my computer nor with Firefox in general."

Mixcloud support reply at the time: "this is linked to some issues we've been experiencing but our team are busy working on a fix for". 10 months later nothing changed...

The same issue happened again this very morning: I opened a Mixcloud link from google results and even though I immediately closed it, 5 minutes later the RAM usage was at 93% and I struggled during 10 minutes to "force to quit" FF as the whole computer was becoming increasingly unresponsive. I can provide a crash report from this morning but would prefer not to display it publicly.

Please investigate this leak. It is becoming more and more frustrating to deal with as the time goes by.

I've been using Firefox Developer version for some time now on Mac OS and have never had a problem like this before.

However, since version 80, Firefox Developer fails to render the new css after a change and save has been made to the style sheet even after multiple browser refreshes. Caching on the server end has been disabled so I'm really trying to find a solution to this issue as it has forced me to find alternative browsers to develop with like Safari since Firefox Developer has become unusable for me.

I've gone through and performed manual cache flushes on the browser from the settings/preferences panel. On occasion, by quitting Firefox Developer edition and relaunching it will then render the new changes but only after a quit and relaunch and sometimes using a private window as well. This is happening with multiple hosting services so it's not any particular provider.

This is most annoying. I've even reset Firefox Developer a number of times to default settings without any extensions etc. and still the problem exists.

Earlier version of Firefox Developer don't seem to be exhibiting this problem. I'm not running any proxy's or special configurations with the settings either.

Any assistance to finding a workaround would be greatly appreciated or I'm going to have to stop using Firefox Developer version altogether.

Thank you,

Over the past 6 months or so, I've noticed that I occasionally get corrupt images where the images are replaced by semitransparent, randomly colored vertical lines, as seen in the provided screenshot. I am unable to reliably reproduce the issue, and it seems to happen somewhat randomly, but recently its started to occur more frequently.

I am on the latest version of Windows 10 Pro, and all of my drivers are up to date, to the best of my knowledge. I'm not entirely sure this is a Firefox-specific issue, and I seem to remember the same problem occurring in the default windows 10 photo viewing app, but I'm not certain about that, it might have just occurred when I opened my images for viewing in Firefox.

I appreciate any help or insight anyone can provide, thanks!

Not a serious bug, but firefox warns about cancelling downloads when trying to switch profiles without actually exiting the browser. Please take a look at the attached image.

If I somehow click on "Cancel 1 Download", it does nothing, just launches the profile I am launching. So the warning actually means nothing, and should be removed.

Thanks.

Hi,

If I already use a password manager service, why would I be required to have something similar with Firefox, I don't understand, why would I even need a password with Firefox, is it for added security? I am using a few Firefox extensions, is it for that? Every time I sign on to Firefox browser, I'm prompted for a password. When I headed over to settings to cancel it, a message said not to. This feels more like a pain in the b**t?

Please advise Thanks for helping

I've got multiple clients set up to sync via FF sync. Some are older, some are newer.

However, looking at the newest client (set up ~2 weeks ago), I noticed something: It only shows a browser history up to approx. one year in the past. I've checked other clients. My oldes client goes back to ~2016, which is 4 years form now. I know my oldes client is older than 2016, so there has to be more.

Does FF Sync skip older entries? IMHO I'd have to see the exact same history on my older client than on my newer client. That is not the case. Any ideas?

When I try to get into my school's faculty website, I get this error (that just started today): "HTTP Error 400. The size of the request headers is too long." Is there a way to fix this?

Every time I click on an ICS file, it asks me what to do with it. I tell it to open with Thunderbird, and I check the box for it to do that by default. But it doesn't remember, so I have to select Thunderbird from the list every time. Thunderbird is set as the default in the Options>Applications menu, but it still asks every time.

Hi! I forgot my password for my Firefox account and after - a lot - of times I decided to risk and restart my password. It said I MAY LOOSE SOME of my information, details, passwords, tabs etc. but it said about some of them.... I restarted my password and i lost absolutely everything :(((( My tabs, details, history, password. Everything. My account is whole clear! Why would they secure all details into password?!! if someone forgot password it is first thing to reset it, but in this case u reset ur password and u loosing everything, which make no sense.... what is the point of it ? :/ Is there any chance I can get back all my stuff??? If not... Will I also loose everything from my other computer? (I just tried to log in on another device. I cant loose it, there are too many important things I have ;((((( What can i do to not loose my all things on other device? shall i turn off sync here now, and when I turn on my other device it will stay? or it is too late bcoz I've pressed to sync it here (and nothing showed up) Help me please ;(((

Hi,

Malware and Adware scanning fetched two results and they are associated with Mozilla Firefox. I attach two screenshots. Please solve the problem.

Thanks.

Hello, at some point in the recent updates (with FF 80? I can't say as I have skipped a few updates over summer and only recently updated again to the most recent Beta), the way in which my Firefox browser handles PDFs has changed. After quite a bit of research and scouring through other threads I haven't been able to find a way to reverse it. I do hope there is...

-PREVIOUS BEHAVIOUR- 1) When I clicked on a link to randomsite.com/example.pdf, FF would open the PDF within the browser, either in the same tab or (if I requested it) in a new tab or window. The URL line would show "randomsite.com/example.pdf 2) The only exception was where a website had forced the PDF to be downloaded, in which case the dialogue asking me how I wanted to open the file would appear. In earlier days, in that case I had to pick Adobe or Preview or similar, more recently the dialogue also allowed me to open the file in Firefox. In that case, the URL line would show the local URL, i.e. "file:///Users/Michael/Downloads/example.pdf"

-CURRENT BEHAVIOUR- 1) What now happens is for any PDF I click on whatsoever, Firefox forces me to download it. Depending on what I put in about:preferences, I either get the dialog window asking me to make a choice, or it directly opens a new Firefox tab, but crucially it still downloads the file and shows me the local URL of it.

-WHAT I WOULD LIKE- A way to revert to the previous behavior where for 90% of PDFs, I never downloaded them but just viewed them in-browser. I look at a large number of different PDF files online every day for my work and I certainly don't want to download all of them and having to de-clutter my download folder all the time.

-WHAT I HAVE TRIED- - I went to "Applications" in about:preferences. I can set the relevant entries for PDF files to "Always ask" or to "Open in Firefox" but even with the latter set, it still downloads them and opens the local copy, rather than not saving a local copy in /Downloads/ at all. - I have checked in about:config and "pdfjs.disabled" is set to "false" as it should be

I don't think I have any extensions or add-ons related to PDFs, in any case I haven't installed any new ones recently.

Any clues appreciated, my overflowing Downloads folder is grateful.

MSN does not work correctly.The slide show does not show the arrows that enable one to move back and forward. This has been going on for a few updates now. Also the refresh/stop button does not always work. I have to use Opera to get onto email and to read any news/articles on MSN.

Firefox 81, media control function has a bug. All the sites that I use work with it normally. Except VK. Controlling functions like pause, prev or next are working ok. But system media pad always shows title and cover only of the very first track has been played.