All Products Support Forum

After updating to Firefox 66.0 on MacOS 10.13.6 today, websockets on my localhost stopped working.

When using Create React App (version of "react-scripts": "2.1.8" => "webpack-dev-server": "3.1.14" => "sockjs": "0.3.19"), hot reload is broken and I get following error in the console:

`The connection to ws://localhost:3000/sockjs-node/743/khw0phgj/websocket was interrupted while the page was loading.`

When I tried https://www.websocket.org/echo.html, it works fine and no problems with hot reload in Chrome 72.0.

How can I debug and fix this problem please? (when I googled the error message, I got a lot of outdated advice from previous versions of Firefox)

Hello. I have KIS (antivirus). I have disabled all MITM options at settings. But FF set and locked security.enterprise_roots.enabled to true. How can I set option security.enterprise_roots.enabled to false?

I am running Firefox 52.9.0 (32-bit), Win XP PRO SP3 on several computers and only my desktop has this problem.

Youtube videos embedded in other pages do not work and only blank space is displayed but if I go to Youtube the videos play correctly. This only happens in one computer. In other computers running same Firefox 52.9.0 (32-bit), Win XP PRO SP3 this problem does not happen.

I guess it might be some configuration problem.

On most sites, I can right click an image and choose "Save image as..."

Today I wanted to download an image from Facebook. I right-clicked on the image and "Save image as..." was not there.

Why is this happening and how can I solve it?

Adblock is causing many problems on the net. I have websites where movies are played, but I first have to remove Adblock!! 1. I have tried to uninstall Firefox and install a new one. Failed 2. I installed Google Chrome Failed 3. I tried to watch the movies in Safe Mode. Failed 4. I am at a lost to what to do 5. Lastly the only thing I can do is a complete Reboot of my computer, but this is a last resort because it requires a lot of time to do this. So unless u can help me ... I don't know what to do. Please help me for I am severely handicap. Thank u for your time Kevin Dakin

On many pages (commercial), when I click a link to look at another page, clicking the "Go Back One Page" button results in the original page scrolling down a varying amount.

For example, I visit CNN.com. I then select an article I want to read. When reading is complete I press the "Back" button, which returns me to the original page, but also scrolls that original page, sometimes just a few lines, but also sometimes to the very bottom of the page.

This only happens on the newest (66.0) version of Firefox upgraded yesterday. It does not happen with other browsers. It does happen with Firefox started in safe mode. I also checked the carat (^) scroll in "Options" and this was not selected.

This also happens whether I use the Firefox Page Back Button, or the "Back" button on my mouse.

Thanks Doc

please help i am panicking so much right now i would type in all caps but i know that wont help

my session has a very very large amount of tabs and it only just started slowing down in the past 24 hours. ive never had trouble before today, but i just restarted and it only loads a completely blank page with the tab name New Tab

there is no option to restore previous session, and both restore closed tabs and restore closed windows options are empty in the library section

ive opened 2 windows and refuse to close either because im afraid it will completely remove all of my tabs forever. i will only restart in safe mode if i get a really good explanation and reason. anything that sounds risky i would really need a good explanation before i do it please

ive done verify integrity in the about:places section i think its called. ive looked around for my problem and ive submitted some recent crash report which could've been when the browser lag started

Thank you

IBM SmartCloud Notes web users who have upgraded to FireFox 66 to be unable to enter a lower case “p” in the To, CC, BCC, Subject, or Address Picker fields.

Older versions of FireFox as well as any other browsers are working fine

Why is this a feature without the option to disable when none of the other browsers has this feature?

It's really annoying trying to close a tab only to open a new one again because you middle clicked on the empty portion of the tab bar.

I seem to have exported my Safari bookmarks and imported them to Firefox on my new MacBook Air, but I can't make them appear in the bookmarks toolbar. All that toolbar shows is a "Getting Started" prompt, which I have gone through and completed its survey.

I just upgraded to ver 66.0 and thought one of the features was to not allow autoplay. I'm still getting autoplay, on yahoo.com, (and other sites) even after adding block in exceptions. I thought it would be disabled. What must I do?

Hey, I know this question has been tackled in the past, but I tried following previous guides and none of the code listed in those guides worked with the latest version of firefox (66). I'm a mac user (you guessed it lol) and I wanted to put the "close tab" x button on the left of the tab, and not the right, so that its consistent with the rest of Mac OS.

Does anyone know how to do that, or is there an extension which does this?

Thanks!

Hi,

I am in the Netherlands and by default, the Firefox that is downloaded from the main page is in Dutch. I dislike having my applications in Dutch so I tend to set them to English at the earliest opportunity but Firefox seems to be stuck somewhere halfway in between. Here's what I did/tried: - First downloaded the regular Firefox, set it up, changed the language to English in settings and went on setting up. After a number of tweaks and addon installs I restarted the browser. - The browser is now in what I would call Dunglish; the settings page and various other things are in English, but the menubar and various other standard controls are not, they are still in Dutch. - I went into about:config and changed the intl.locale.requested value to only say En-US, before it had NL tacked onto the end of that. No change. - I downloaded the language pack addon and restarted the browser. No change. - I downloaded the US version of Firefox and installed it on top of the other, Dutch, version. No change.

I'd really rather not remove my profile entirely and start from scratch as I've been working on setting it up just the way I like it for half a day now and I'd rather not redo all that. What can I do? So to summarize, I know of the language-specific browser version and installed it without results, I know of the article describing how to use Firefox in another language, I know of the language packs and I know of the intl.locale.requested variable already. None of these solutions have solved the problem. Thanks a lot for reading and for any help you can provide.

Zersiax

Hi, I'm trying to get as much as possible of firefox to use dark theme to save my eyes at night.

I use https://addons.mozilla.org/en-US/firefox/addon/darkreader/ to customize the sites automatically and it does an excellent job, except that firefox pages can't be customized with it and by that I mean:

about:blank about:newtab about:config about:preferences

for the blank and newtab pages I found three solutions:

1- create a [userContent.css](http://kb.mozillazine.org/UserContent.css) file with the following

@-moz-document url-prefix(about:blank) {*{background-color:#000000;}}

@-moz-document url-prefix(about:newtab) {*{background-color:#000000;}}

2- go to about:config and change

browser.display.background_color to #000000

browser.display.foreground_color to #ffffff

3- Go to "Preferences" and search for "colors" click on the colors button and set the background and text colors to the same colors as in 2.

now I tried all of the solutions above and all of them have side effects, the most prominent and annoying one is flashing white page for a couple of seconds when opening a new tab or white page while the website, other annoyances is that the settings don't apply to about:config and about:preferences even if I add them in userContent.css

-To test the flashing white you only need to open a new tab (while applying my settings above) and you will see it.

-To the white page before the site is loaded you need to open the link from another page(if you open a new tab and then paste the link you won't get the white page since the about:blank or about:newtab will have the dark background)

so to see my problem do the following:

1- go to https://github.com/biesiad/deelay#deelayme

2- right click on deelay.me link and click "open link in a new tab"

the link will be opened in a new tab that has the background in white or grayish color.

How can I solve these problems ? any tip would be appreciated.

Regards

I've used userChrome.css since 57 I believe to have a two row bookmark toolbar. The .css files is currently:

/*AGENT_SHEET*/

/* Firefox 57+ userChrome.css tweaks ****************************************************/ /* code mostly taken from 'Classic Theme Restorer' & 'Classic Toolbar Buttons' add-ons **/ /* by Aris (aris-addons@gmx.net)*********************************************************/ /* Github: https://github.com/aris-t2/customcssforfx ************************************/ /****************************************************************************************/

1. personal-bookmarks {

 display: block;

}

1. personal-bookmarks #PlacesToolbar {

 display: block;
 min-height: 0px;
 overflow-x: hidden;
 overflow-y: auto;
 max-height: 999px;

}

1. personal-bookmarks #PlacesToolbar > hbox {

 display: -moz-stack !important;
 left: 0px;
 right: 0px;
 width: 100%;

}

1. personal-bookmarks #PlacesToolbar #PlacesToolbarItems {

 overflow-x: visible;
 overflow-y: visible;

}

1. personal-bookmarks #PlacesToolbar #PlacesToolbarItems > box {

 display: block;

}

1. personal-bookmarks #PlacesToolbar > .bookmark-item{

 visibility: visible !important;

}

1. personal-bookmarks #PlacesToolbar .chevron{

 display: none;

}

1. personal-bookmarks #PlacesToolbar > hbox > hbox{

 overflow-x: hidden;
 overflow-y: hidden;

}

1. personal-bookmarks #PlacesToolbar #PlacesToolbarDropIndicator[collapsed="true"],
2. personal-bookmarks #PlacesToolbar #PlacesToolbarDropIndicator{

 display: none;

}

1. personal-bookmarks #PlacesToolbar toolbarbutton.bookmark-item{

 padding-top: 2px;
 padding-bottom: 2px;
 /*margin-left: -4px !important;
 padding-right: 9.5px !important;*/

}

1. personal-bookmarks #PlacesToolbar toolbarbutton.bookmark-item:hover:active:not([disabled="true"]),
2. personal-bookmarks #PlacesToolbar toolbarbutton.bookmark-item[open="true"] {

 padding-top: 2px !important;
 padding-bottom: 2px !important;
 /*-moz-padding-start: 4px;
 -moz-padding-end: 2px;*/

}

1. personal-bookmarks #PlacesToolbar toolbarseparator{

 -moz-appearance: none !important;
 visibility: visible !important;
 display: inline;
 text-shadow: none !important;
 border-left: 3px solid ThreeDShadow !important;
 border-right: 3px solid ThreeDHighlight !important;
 vertical-align: middle;

}

1. personal-bookmarks toolbarbutton.bookmark-item[dragover][open]{

 -moz-appearance: toolbarbutton;

}

1. navigator-toolbox toolbar:not(#nav-bar):not(#toolbar-menubar):not(#TabsToolbar) {

 max-height: 50px !important;

This is no longer working in 66/66.0.1.

What needs to be adjusted to make this functional again in the latest updates?

Thanks!

R

Hello,

Suddenly, when using the screenshots tool, it doesn't save save my shot when I screenshot it and click on the "Download" button anymore.

Nothing happens and I can't see anymore that blue down arrow beside the URL bar.