Firefox supportforum

I use 3 profiles (work, private and media) side by side. When I open external links I have no control over which profile will open the link. The link is opened right away (so no profile manager interference) in a random profile. I do want it to open right away, but ideally would like to easily set a priority order for profiles to open the external links without having to restart the profiles.

Hi, IM having trouble getting on to TESCO.COM , i can get on with GOOGLE but with Firefox it keep saying :-

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Oops... It looks like something is not right

If you are seeing this page it is because your browser has failed some security checks

You may still be able to browse our site to find the feature or store you're looking for. Go to homepage, Contact Us, Site Map.

If you continue having trouble please contact our customer service helpline on: 0800 323 4040

Reference Id: 18.79476768.1594138726.1d58126e

=

THIS keeps on happening at least 6 - 8 a year. ive cleared the cache off Firefox, rebooted it, got a now TESCO site and it is still the same. Yet Google fires up all right all the time. I have got 3 pc of a type and they all can get TESCO without any trouble. Ive been with you for 20yrs and am reluctant to change noW. Tesco just say your better of using Google than Firefox, which isn't much help. Yes they can get me on (sometimes) but they all ways say Google is the one really.

There must be something i can do?

Whenever I have to scan a qr code, It turns into whatever that is in the image attached. Same thing happens sometimes when I try uploading images on certain websites. It works fine on other browsers. It also happens while using Firefox safe mode. Sorry for not being detailed enough.

Earlier it was removed using style in userChrome.css file - " #PopupAutoCompleteRichResult richlistitem:first-of-type[actiontype="visiturl"] ", after update to 78.3 esr version this isn't working. I tried with deleted /home/.mozila folder (new profile) and with menu home ->top sites and search suggestions switched off (and also with and without userChrome.css file) so this is isn't the case. Thanks for help.

I want to transfer the profile from an old PC running Windows 7 to a new PC running Windows 10. I've copied the old profile to a USB stick. After much searching I've found the profile created by the new installation, but it seems to appear in two folders: AppData/Roaming/Mozilla/Firefox/Profiles, and AppData/Local/Mozilla/Firefox/Profiles. Should I simply substitute the old profile for both instances of the new profile? NB This message is posted from a different platform (Mac) Thanks

It has become impossible to drag the URL from the address bar to the desktop.

Specifically, the action described in this article https://support.mozilla.org/en-US/kb/create-desktop-shortcut-website DOES NOT WORK.

FF 78.0.2 Mac OS 10.14.2

In the new version of the Developer Edition the options "close tabs to the right" and "close other tabs" are in a sub-menu named "Close Multiple Tabs" inside the context menu. Is there's a way to change this so that they will appear directly in the main context menu? I use "close tabs to the right" often and I find this very annoying.

After updating from 77 (I think it was 77.0.2?) to 78.0.1 I started noticing terrible firefox performance after a few minutes of browsing. My standard browsing habit consists of launching browser with 1 pinned tab and 1 home page (so 2 tabs only), then opening 5-10 tabs from my bookmarks, checking pages then closing them and leaving only 1 pinned page open. In firefox 78.0.1 after doing this (opening and then closing multiple tabs "to the right" using new context menu added in 78) my ram usage does not drop. It goes from 2.4GB (system only usage) to 5.0GB and does not drop after closing tabs. However when I open 10-20 tabs again RAM usage does not rise (maybe slightly, like 5.3GB). So it looks like firefox has multiple tabs stored in ram and opening new tabs just rewrites that memory instead of allocating new one. I have 8GB of ram so 3GB of usage from 1 open tab is crazy. I think it was 500-900MB before. I also have terrible lags because of this - browser hangs up every few seconds for few seconds. I had trouble writing this post with 2 tabs open because of 3.3GB ram usage! Restarting browser helps - ram uasge rises from 2.4GB to 3.2GB only (800MB for 2 tabs) but every new opened and closed tab seems to stay in memory. For example if I open 10 more tabs except for 2 that always open so I have 12 tabs I have 3.6GB memory usage. After I close them it slowly drops to 3.5GB instead of returning to 3.2GB. It does not matter how I close tabs - using right click context menu (close other tabs, close tabs to the right), using X on tabs, or using add-on to close all tabs except for pinned ones. They always remain in memory somehow. PLS fix this ASAP.

P.S. I also tried checking about:performance menu but there is nothing interesting here. It says that 2 opened tabs and addons use 100MB of memory which is not true because browser at this moment uses 1060MB.

Update 1: I also tested safe mode. 3,4GB of PC RAM usage on firefox safe mode start. Opened few tabs, ram usage goes to 4.2GB. After closing all tabs except for 1 ram usage start to SLOWLY decrease but it stops at 3,7GB. Ram usage drop was really slow like 10-30 seconds. It should be instant after closing tabs.

Since the latest updates, I can't access at least two sites I need to go to daily. (chase.com and constantcontact.com) All other sites open fine and those two open in Chrome. I read that this is a known issue with the update. I don't understand the fixes. I just need things to work!

I have a mac with a free Avaast app running. Not aware of any firewalls.

Error says: "The connection has timed out" in both cases.

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

Greetings: My computer was shutdown and restarted by a colleague and I seem to have lost my browsing history and all the open tabs from my last session are not retrievable — restore previous session is not available / appears grey'd out. I am on a macbook pro running Big Sur and I do have a time machine backup of that last session — can I get back those open tabs and browser history from my time machine? Can I do it a la carte or do I need to wipe my whole computer and restore from there? Thanks in advance for your thoughts, Sam

I am using tab-on-bottom code in userChrome.css that I got from the web.

1. There is a highlight feature of the tabs. A mouse-over will do a subtle enhancement of the top portion of the line delineating of the tab. 2. The active tab has a blue bar at the top portion of the line delineating the tab.

I want both to go away. I have code to highlight the background color of the active tab and need no other highlight function.

The userChrome.css is below.

Thanks, Gert

/* TABS: bottom - Firefox 65 and newer; should for now work with XUL @namespace */

1. TabsToolbar {

 -moz-box-ordinal-group: 1000 !important;
 display: block !important;
 position: absolute !important;
 bottom: 0 !important;
 width: 100vw !important;

}

1. tabbrowser-tabs {

 width: 100vw !important;

}

• |*:root:not([chromehidden*="toolbar"]) #navigator-toolbox {

 padding-bottom: calc(var(--tab-min-height) + 1px) !important; /*adjust*/

}

/* position Tab bar with Menu bar and Title bar hidden for Firefox 65-73 - omit in Firefox Nightly */

• |*:root[tabsintitlebar]:not([inFullscreen="true"]):not([sizemode="maximized"])

1. toolbar-menubar[autohide="true"] ~ #xTabsToolbar{

 bottom: var(--tab-min-height) !important;
 padding-top: calc(var(--tab-min-height) - 0px) !important; /*adjust*/

}

/* TABS: height */

• |*:root {

 --tab-toolbar-navbar-overlap: 0px !important;
 --tab-min-height: 30px !important; /*adjust to set height or omit to use density*/
 --tab-min-width:  80px !important; /*adjust to set width or omit to use default*/

}

1. TabsToolbar {

 height: var(--tab-min-height) !important;
 margin-bottom: -0px !important; /*adjust*/
 background-color: #F5F6F7 !important;

}

/* caption buttons - hide */

• |*:root[tabsintitlebar]:not([inFullscreen="true"])

#toolbar-menubar[autohide="true"] ~ #TabsToolbar
.titlebar-buttonbox-container {display: none !important;}

/* Change Color of active tab */ .tab-background[selected="true"] {

   background-color: #A8FFAD !important;
   background-image: none !important;

}

/* Rounded corners on tabs firefox 58 */ /* http://forums.mozillazine.org/viewtopic.php?f=38&t=3037688# */ .tabbrowser-tab::after, .tabbrowser-tab::before {

  border-left: none !important;

} .tab-background {

 border-radius: 6px 6px 6px 6px !important;
 border-image: none !important;
 border-left: 1px solid !important;
 border-right: 1px solid !important;
 border-top: 1px solid !important;
 border-width: 1px !important;
 border-color: #000080 !important;
 background-attachment: none!important;
 background-color: #DAD7D0 !important;
 background-image: none !important;

}

/* Menu bar (File Edit View) height and background color */

1. toolbar-menubar, #menubar-items, #main-menubar {

 height: 30px !important;
 background-color: #DAD7D0 !important;
 background-image: none !important;
 font-size: 14px !important;

}

/* Menu bar (File Edit View) text color */ .menubar-text, .tabbrowser-tab:not([selected="true"]) tab-label {

 color: #080808 !important;

}

/* Use Normal top and bottom padding for Compact */

1. PlacesToolbarItems .bookmark-item {

 padding-top: 10px !important;
 padding-bottom: 6px !important;

}

I have firefox 82.0.3 and videos on reddit are not loading, well embeded youtube ones are, just not the ones hosted by reddit I believe. The screen just stays blank. I tried this from old.reddit.com as well as www.reddit.com. before anyone says its a setting or an extension, I was doing a clean install of ubuntu and loaded firefox. no extensions, just the default settings. I installed brave browser and it works in brave just fine.

I also have linux mint with firefox 77.0.1 on another computer and it works fine (and that computer has a bunch of extentions as well as a bunch of privacy tweaks in the about:config (the ones listed on privacytools.io)

I also loaded firefox in safe mode and deleted the prefs.js file. none of that worked. I also changed the preference to load play video play audio. didnt work. It seems also gyfycat videos load too.

any suggestions?

Hello, Firefox seems to be using my system's High Contrast text color to render websites. My High Contrast text color is a light grey, to contrast with a dark system background. However, many webpages on the internet have light backgrounds, so when Firefox uses this color, I can't read the text. I already have Options>Language and Appearance>Colors>Override the colors specified by the page set to "Never." This also occurs in a brand new profile with 0 extensions or addons in Safe Mode. I just want Firefox to display webpages "normally", i.e. with black text, without regard to the current system colors.

To reproduce: - Turn on High Contrast - Visit a site such as http://hyperphysics.phy-astr.gsu.edu/hbase/ppois.html - Change system High Contrast text color to any color you wish - Notice that the text on the page also changes to the same color, even with the setting on "Never"

Is there any way I can get Firefox to ignore the system's text color settings? Chrome renders the webpage just fine with black text.

I received a data breach alert from Firefox saying my email address & password had exposed on a particular site, and to change my password for that site. But I do not have an account with the stated site. I have visited it but never opened an account or logged in to it. What action do I now take or should I just ignore this alert and mark it as "resolved" ?

Whenever I zoom into images in Firefox (example), the image smoothing makes them look blurry, especially on low resolution images. Is there any way to disable image smoothing of Firefox?

At some time in the past I installed regular Firefox and updated throughout the years. But for the past maybe year or so, the updates have been Firefox ESR. I don't recall ever having installed the ESR version. Why am I only getting Firefox ESR updates?

cannot log in to my Bank of Montreal online banking!!!

I've used Firefox for years, and for years I daily do my online banking.

Now all of a sudden, without any warning I cannot log into my bank account. I've tried clearing history, etc. I've tried the about:config change...

I can log in fine with Microsoft Edge.

My wife uses Firefox and she can log into the bank. I suspect that is because Firefox has not updated on her computer.

This is maddening, to put it mildly.

At first, it was only occasionally. Now Firefox freezes every time I try to upload a photo, and it is a big problem for me! It does it in Facebook, Messenger and even Kijiji. I need to fix this!

Can anyone help? I've reported this to Mozilla more times than I can count.

I have an iMac running El Capitan.