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How to make Firefox ask before closing?

in about:config page the options: browser.tabs.warnOnClose (true - default) browser.tabs.warnOnCloseOtherTabs (true - default) browser.sessionstore.warnOnQuit (false - de… (read more)

in about:config page the options: browser.tabs.warnOnClose (true - default) browser.tabs.warnOnCloseOtherTabs (true - default) browser.sessionstore.warnOnQuit (false - default) browser.warnOnQuit true (true - default)

But when i do Ctrl+q accidentally, it closes the only Firefox window i have. This window has many tabs open. Yes it restore next time, but i want FF to ask me before closing it.

FF 84.0.1 Arch Linux

Asked by #367259 1 year ago

Answered by #367259 1 year ago

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Credit card autofill does not fill form fields

I have Firefox 84.0.1 on Linux Mint, and I have filled in the information for one credit card. When I hover over credit card fields on retail site forms, I usually (but n… (read more)

I have Firefox 84.0.1 on Linux Mint, and I have filled in the information for one credit card. When I hover over credit card fields on retail site forms, I usually (but not always) get a pop-up "hint" showing the card number and/or expiration date ... but I cannot get the browser to actually fill in the form field. I've tried clicking, hitting Enter, hitting Tab, but nothing actually puts the information from the pop-up into the form field. Any hints as to what part of the incantation I am missing would be appreciated.

Asked by Paul 1 year ago

Answered by Paul 1 year ago

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Multi-Account Containers enabled, but no option to actually use them

I've installed Firefox Multi-Account containers but I don't have either the shortcut in the upper right corner, nor the option to open a link in a new container (see scre… (read more)

I've installed Firefox Multi-Account containers but I don't have either the shortcut in the upper right corner, nor the option to open a link in a new container (see screenshots attached). I've removed and added the add-on several times as well as doing clean installs of Firefox. Nothing is allowing me to use containers, though it shows installed.

I have made no changes to the default preferences (wanted to get this working before tweaking) and the only other add-ons I have are NoScript and YouTube Flash Player by Maxime RF. Removing either or both of those has no impact on my problem, as far as I can tell. Enable Container Tabs is checked (and grayed out) in Preferences, as the add-on requires it.

I'm on Firefox 77.0.1 (64bit) Clean install of pop!_OS 20.04 LTS

This is immensely frustrating, so any help would be appreciated!

Asked by mozilla125 2 years ago

Answered by jscher2000 - Support Volunteer 2 years ago

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Firefox 89 on Raspberry Pi - visual codec artifacts

Firefox 89 on my Raspberry Pi 4 is displaying what I'm guessing is a codec issue. Videos can be watched but the picture is corrupted by brightly coloured patches around a… (read more)

Firefox 89 on my Raspberry Pi 4 is displaying what I'm guessing is a codec issue. Videos can be watched but the picture is corrupted by brightly coloured patches around areas of detail.

Prior to the version 89 upgrade, version 88 was working perfectly.

I have Firefox 89 on a Raspberry Pi and a PC. On the PC it still works perfectly, on the Pi video is displayed badly.

On the Pi Firefox 89 is running under Ubuntu 21.04. On the PC Firefox 89 is running under Ubuntu 18.04

Am I alone in this or have others seen the same issue ?

Assuming I am not alone, does anybody have any idea what has gone wrong ?

Asked by vw 1 year ago

Answered by cor-el 1 year ago

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Does FF have a horizontal left-right scroll key or key combo for really wide pages?

Hi All some pages like this one are wide enough to have a horizontal left/right scroll bar. https://trello.com/b/3OtE8BCR/brizy-wordpress-public-roadmap If I'm lucky, w… (read more)

Hi All

some pages like this one are wide enough to have a horizontal left/right scroll bar.

https://trello.com/b/3OtE8BCR/brizy-wordpress-public-roadmap

If I'm lucky, when I want scroll left or right, the cursor is on a piece of HTML where it can move when I use the left or right arrow keys. However often, the cursor isn't available or the right place.

Is there a key or key combo where I can shift the web page left or right in the FF window? I often find it difficult to use the horizontal scrollbar with the mouse.

Asked by Adam H. 1 year ago

Answered by the-edmeister 1 year ago

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Where does Firefox store SQLITE download history

I normally choose my download location and if they're zip I'll delete them after extract. The problem is currently I can't find any way to get where did I put my download… (read more)

I normally choose my download location and if they're zip I'll delete them after extract.

The problem is currently I can't find any way to get where did I put my downloaded files if it's not there.

BUT!!! In order to know the files aren't there, Firefox has to know where did I put them.

I searched the home folder but nothing named `download` is in the folder.

I asked a question for what should I do https://support.mozilla.org/en-US/que.../1312757 but doesn't get anything remotely useful.

Asked by palm22180 1 year ago

Answered by cor-el 1 year ago

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firefox not playing html5 videos

Hi! I have got a big problem that took hours of my patient attention, but nothing helped(or I have done something incorrectly). I am unable to play most videos on the int… (read more)

Hi! I have got a big problem that took hours of my patient attention, but nothing helped(or I have done something incorrectly).

I am unable to play most videos on the internet. For example, i can watch video in youtube, but when i play stream on the same platform, youtube complains that currently my firefox browser does not recognize any html5 video formats.

Plugins installed: OpenH264, Shockwave Flash, and... while writing this question i've found that there's also widevine cdm that i tried earlier to install in my browser, 'cause by default in my Ubuntu 20.04.1 LTS there's no such extension.

I tried this to install widevine. Maybe I have done something in the way it shouldn't. 1)https://support.mozilla.org/en-US/questions/1207502 2)Reinstall firefox 3)Trying disabling any combination of installed extensions to find the "wrong".

Asked by jarskimarkus 1 year ago

Answered by cor-el 1 year ago

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How do I disable the blue flash when a tab finished loading?

How do I disable the blue flash when a tab finishes loading? I'd like to suggest an option in a future release that disables all these things. I find it a real distractio… (read more)

How do I disable the blue flash when a tab finishes loading? I'd like to suggest an option in a future release that disables all these things.

I find it a real distraction, and it's really putting me off using firefox as a broswer. I really don't think this sort of eye candy is needed in order to browse the internet.

Asked by useruser 2 years ago

Answered by jscher2000 - Support Volunteer 2 years ago

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Facebook White Screen (only with Firefox)

Today I got what I've seen described as the "Facebook White Screen of Death". I've tried: Reload Clear Facebook cookies (which implies logging back in) Clear site data Re… (read more)

Today I got what I've seen described as the "Facebook White Screen of Death". I've tried: Reload Clear Facebook cookies (which implies logging back in) Clear site data Restart in Safe Mode None of these things make any difference. Still get only a white screen. Facebook works fine in the Chrome browser and in the Android app, so it must be a Firefox-specific issue, in my case. This is Firefox 81.0.2 under Ubuntu 20.04 The problem only started today. I've used Facebook with Firefox for years without problem.

Asked by David Shochat 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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Firefox userChrome.css - Hide address bar

Hello! I am using the userChrome.css file to hide the nav bar (# nav-bar) and show it when hovering the tabs. The following code works a bit, but when I open the develope… (read more)

Hello! I am using the userChrome.css file to hide the nav bar (# nav-bar) and show it when hovering the tabs.

The following code works a bit, but when I open the developer tools they overlap.

# nav-bar {
   z-index: -1;
}

# navigator-toolbox: hover # nav-bar {
   z-index: 1;
   background-color: rgba (0,0,0,0.8)! important;
}

#browser {
   margin-top: -45px;
}

Any advice to achieve the expected functionality? Thank you

gif showing the problem: https://s10.gifyu.com/images/firefox-customization-problem.gif

Asked by serhumanos 6 months ago

Answered by serhumanos 6 months ago

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Ubuntu 18.04.5 - tab flickering when I refresh or loading website

Dear Mozilla Support, After some update (I think from 89.0.0 version of Mozilla Firefox - this version with new looks of tabs) I notice flickering on the tab when I loadi… (read more)

Dear Mozilla Support,

After some update (I think from 89.0.0 version of Mozilla Firefox - this version with new looks of tabs) I notice flickering on the tab when I loading website or refresh website. This looks very strange. Like I said I dindn't notice any issue with flickering on previous Mozilla Firefox versions. Only with these new versions with new look of the tabs. I didn't remember if it was 89.0.0 version or 90.0.0 version. I don't know if it is problem with the machine but I didn't notice this issue on another computer with 90.0.2 Firefox version but with Windows 10 OS. I also noticed this issue with Firefox 90.0.0.2 with Windows 7 OS on another computer so I don't know if this is problem with two computers or Firefox itself. Can you help me?

Yours faithfully, Piotr

Asked by Peter 10 months ago

Answered by cor-el 10 months ago

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How do I set the general zoom level programmatically

When I use Firefox on the external monitor, I set the zoom level to 150%. When I leave home a take my laptop with me, I set the zoom level to 100% to use with a smaller s… (read more)

When I use Firefox on the external monitor, I set the zoom level to 150%. When I leave home a take my laptop with me, I set the zoom level to 100% to use with a smaller screen.

I want to automate setting the zoom level.

Is there a way to programmatically set the zoom level from a script? Does Firefox expose such an API / command-line tool?

Thanks!

Asked by Pierre 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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Embedded video won't play

Embedded videos at a particular website do not play in FF 80.0.1 (64 bit). My system is running Ubuntu 20.04.1 LTS. I have tried workarounds but none have provided a reme… (read more)

Embedded videos at a particular website do not play in FF 80.0.1 (64 bit). My system is running Ubuntu 20.04.1 LTS.

I have tried workarounds but none have provided a remedy. There could be a bug in FF causing this but I'm not sure.

Here is an example link: https://www.sbs.com.au/cyclingcentral/video/1788049475999/Winning-moment-Stage-14

This is the behaviour I see: After I click the play button in the lower left of the embedded frame the video begins to load. The beginning of an ad flashes into the video box but cuts out before playing. The video box is then loaded with the first shot of vision I wish to view but does not play.

I use four FF profiles with various modifications to improve privacy and security. When these changes occasionally cause problems with website function I try loading the website in a FF profile with reduced security/privacy controls. Modifications include changes to privacy and security settings, browser extensions and about:config changes.

Cascading through profiles with a step-wise reduction in the number of modifications still wouldn't permit me to play videos from this site. Even my vanilla FF profile with only a few UI tweaks does not play the video. After that I tried loading problematic pages in a brand new, freshly created vanilla FF profile to which no changes had been made. Videos still wouldn't play in a pristine profile with zero user modifications.

My internet connection comes via a smartphone mobile hotspot. The phone has a system level ad blocker running (Android phone, Blokada app) but switching it off did not allow the videos to play.

After that I tried a different browser. I installed Brave browser via Snap. Version 1.13.82 Chromium: 85.0.4183.83 (Official Build) (64-bit)

It played the video first time. Therefore internet connection to site is good. Did not load advertisement at start of video, no flash of ad content. When the video panel is loaded in Brave a large yellow play button is superimposed on the first frame of the video. The button is a yellow circle with a right-pointing yellow triangle inside it. Clicking the white play button in the lower left corner of the embedded video frame does not play the video. Clicking the large superimposed yellow icon initiates video play.

I'd be grateful for advice on how to rectify this problem.

Asked by Nullius 1 year ago

Answered by cor-el 1 year ago

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Firefox can’t establish a connection to the server at ws://127.0.0.1 (plugin or setting is causing this, how to discover exact cause?)

Hello, Firefox 91.0.2 shows in dev. console: Firefox can’t establish a connection to the server at ws://127.0.0.1 The Private browsing window has the issue too, but i am … (read more)

Hello, Firefox 91.0.2 shows in dev. console: Firefox can’t establish a connection to the server at ws://127.0.0.1

The Private browsing window has the issue too, but i am unsure if it really disable all extensions.

When i use different Firefox profile, then the localhost site i am trying to load is loaded without that error. So how to discover please which FIrefox profile setting is preventing the loading please?

Asked by #367259 9 months ago

Answered by #367259 9 months ago

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400 Bad Header; Request Header Or Cookie Too Large

I have a web sites, www.canadiantire.ca, that worked up to the latest updates. Opens home page; select search and enter any search term; hit Return/Enter and get "400 Ba… (read more)

I have a web sites, www.canadiantire.ca, that worked up to the latest updates. Opens home page; select search and enter any search term; hit Return/Enter and get "400 Bad Header", "Request Header Or Cookie Too Large"

Why am I getting this? Canadian Tire says that there web site is developed for Google Chrome (which I an not in favour of switching to)

Asked by PeterW 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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localhost dns

I am migrating my wordpress based website to a new computer with a LEMP stack on Ubunto 20.04. I wish to access and test the website using the firefox browser offline. I … (read more)

I am migrating my wordpress based website to a new computer with a LEMP stack on Ubunto 20.04. I wish to access and test the website using the firefox browser offline. I have modified my local dns (/etc/hosts) file to include my site's url but firefox can't find it. Firefox manages to find the nginx greeting and it finds phpmyadmin which is used to manage my database, but it can't locate the wordpress web pages.

One might think I had a problem with my nginx server blocks, but that's not the case because google chrome finds the web pages with no problem.

FIrefox appears to reach out to the internet dns by default and ignore the localhost dns settings. So how do I change Firefox's default settings so that it can access websites on the same computer like Google Chrome does?

Asked by wrknight 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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How to restore address bar behavior and line height in 75.0?

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 … (read more)

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.

Asked by highbaser 2 years ago

Answered by elched 2 years ago

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Can't add custom root CA

Desired behavior: I can add my own trusted Certificate Authority next to all the others. Actual behavior: After clicking “Import” and selecting the root CA's cert file,… (read more)

  • Desired behavior: I can add my own trusted Certificate Authority next to all the others.
  • Actual behavior: After clicking “Import” and selecting the root CA's cert file, reloading the website it certifies still yields an Unknown Issuer error.

I am running Firefox 80.0 on Fedora Linux 32.

This certificate file works perfectly fine on another browser.

Asked by ishygddt_xyz 1 year ago

Answered by ishygddt_xyz 1 year ago