Firefox Support Forum

All of a sudden, after waking my computer from sleep, I found that many websites in Firefox are displaying the main text content at 13px, ignoring font sizes specified in CSS etc. I first discovered this on my organization's website, I thought it was a browser cache issue, but it has persisted. The text content on our front page is all the correct size, but everything on the website that is "main content" text that is not in a heading tag, like blog post or regular page content, is rendered at 13px. Other sites like Wikipedia load this way as well. In private mode, the issue disappears. In Chrome, the issue does not occur.

I have cleared all cookies, browser cache, site data, history, and the problem persists. I have checked the default font settings in Firefox, the checkbox saying websites should override the font settings is already checked. Zoom is set to 100%. I updated to the latest version in the course of restarting, and it didn't fix the issue either.

In the attached screenshot, the examples on the left are in regular Firefox windows. On the top right, a page on our site is displayed correctly in Firefox private mode. In the bottom right, Wikipedia is displayed correctly in Google Chrome.

Since the upgrade to Firefox 104.0.2, the only option when printing is to select "Save to PDF". All other apps can printer to any of my printers. I have to save as a pdf then print the document using the PDF viewer. I have HP4100 & HP9025 printers on my network, that all other apps can see and print to. I've refreshed Firefox & re-installed Firefox but the problem still persists. The System's printer dialog shows that both printers are available and changing default, or reinstalling the printers makes no difference. OS is Ubuntu 22.04.1 LTS.

Screenshots show the printer window in Firefox, and the Printer Settings from the OS Settings window.

Although I had long ago selected "Open Previous Windows and Tabs" in Start-Up, my windows and tabs were not restored when I inadvertently quit Firefox this morning and restarted. I then went to the three horizontal bar Application Menu > History to look for "restore previous session", but that button was missing.

So I have two questions: 1. Why didn't my selected preference, "open Previous Windows and Tabs " at Start-Up work? Is there a fix? 2. What has happened to my "restore previous session button in the History tab of the Application Menu, upper right of toolbar? Has Firefox deleted the "restore previous session" button? Can I reinstall it in some way?

I'll be grateful for advice. Thank you

Hello!

I'm having an issue with Netflix, i am unable to play anything there at all. It always shows a message saying "firefox is installing components needed to play the audio or video on this page" and refuses to load anything, showing an error, F7701-1003.

After some investigation, i found out that the issue is with Firefox not loading "Widevine Content Decryption Module provided by Google Inc.". I have seasrched and tried several troubleshooting processes, and was unable to find a solution. Refreshing, reinstalling, manually deleting the profile folder, all fails

With the latest update, something was either broken or MSN figured out a way to by-pass a security feature or how browser (security and or search), now allows auto-rotation to occur without users consent. What I mean, for instance a user goes to a page that has a box that has either picture views or views of another page but in that same page. Once you go into that page from a link on MSN.com the auto-rotation gets turnded on by default automatically. Before the update, this didnt happen! I have all my setting on strict and dont allow this, but it still occurs. All and any pages with this type of scroll or auto-rotation this occurs.

I have recently updated to Xubuntu 22 and in the process my firefox was migrated to the snap version. Now firefox is using its own mouse pointer style (smaller pointer, "hand with cuff pointing left" instead of "hand pointing up" over links). I can edit the system style of my mouse pointer, but that does not change the mouse pointer while in Firefox. This seems the same problem like these two questions: - https://support.mozilla.org/en-US/questions/1380997 - https://support.mozilla.org/en-US/questions/1369875

How do I make Firefox use the system settings for the mouse pointer? Or at least how do I change the mouse pointer style/settings for Firefox snap at all?

For reference my Firefox Version is 104.0.2 (64-bit) Mozilla Firefox Snap for Ubuntu. My desktop environment is xfce 4.16.

Thanks, Peter

I have suddenly lost all audio in firefox using youtube. My Audio works fine in windows and i can play and hear all windows sounds, mp3 etc...The audio also works fine in Edge browser and Chrome browser. So it looks like an issue with firefox, The audio is not muted or disabled in any way its just silent when playing back youtube

Any help apreciated

Firefox browser occasionally downloads unknown htm files with 0KB size. If I open the file, what I see is just an empty file opened in firefox browser. I have absolutely no idea why this is happening or in what situation this happens. Has anyone heard of or solved this kind of situation before?

Hi All

OK so I got a new laptop last night it's running Win 11 on it and I reinstalled Firefox version 104.02 (64 bit). I then copied over my old Firefox's Chrome folder with userchrome.css in it that was working fine on the old Firefox to drop the tabs to bottom. Oddly though it is not working in the new install. Below is the code I have from the old laptop. What adjustments might be needed to drop the tabs to the bottom?

I also have some color customization's to color the folders tanish but that too is not working

Thanks Dave

@import url(userChrome-color_bookmark_folders_Proton89.css);


/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/chrome/tabs_on_bottom.css made available under Mozilla Public License v. 2.0
See the above repository for updates as well as full license text. */

/* Modify to change window drag space width */
/*
Use tabs_on_bottom_menubar_on_top_patch.css if you
have menubar permanently enabled and want it on top
*/

/* IMPORTANT */
/*
Get window_control_placeholder_support.css
Window controls will be all wrong without it.
Additionally on Linux, you may need to get:
linux_gtk_window_control_patch.css
*/

:root{ --uc-titlebar-padding: 0px; }
@media (-moz-os-version: windows-win10){
:root[sizemode="maximized"][tabsintitlebar]{ --uc-titlebar-padding: 8px }
}
#toolbar-menubar[autohide="true"] > .titlebar-buttonbox-container,
#TabsToolbar > .titlebar-buttonbox-container{
position: fixed;
display: block;
top: var(--uc-titlebar-padding,0px);
right:0;
height: 35px;
}
/* Mac specific. You should set that font-smoothing pref to true if you are on any platform where window controls are on left */
@supports -moz-bool-pref("layout.css.osx-font-smoothing.enabled"){
:root{ --uc-titlebar-padding: 0px !important }
.titlebar-buttonbox-container{ left:0; right: unset !important; }
}

:root[uidensity="compact"] #TabsToolbar > .titlebar-buttonbox-container{ height: 30px }

#toolbar-menubar[inactive] > .titlebar-buttonbox-container{ opacity: 0 }

#navigator-toolbox{ padding-top: var(--uc-titlebar-padding,0px) !important; }

.titlebar-buttonbox-container > .titlebar-buttonbox{ height: 100%; }

#titlebar{
-moz-box-ordinal-group: 2;
-moz-appearance: none !important;
--tabs-navbar-shadow-size: 0px;
}

.titlebar-placeholder,
#TabsToolbar .titlebar-spacer{ display: none; }
/* Also hide the toolbox bottom border which isn't at bottom with this setup */
#navigator-toolbox::after{ display: none !important; }

@media (-moz-gtk-csd-close-button){ .titlebar-button{ -moz-box-orient: vertical } }

/* These exist only for compatibility with autohide-tabstoolbar.css */
toolbox#navigator-toolbox > toolbar#nav-bar.browser-toolbar{ animation: none; }
#navigator-toolbox:hover #TabsToolbar{ animation: slidein ease-out 48ms 1 }

/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/chrome/tabs_on_bottom_menubar_on_top_patch.css made available under Mozilla Public License v. 2.0
See the above repository for updates as well as full license text. */

/* Menubar on top patch - use with tabs_on_bottom.css */
/* Only really useful if menubar is ALWAYS visible */

:root{ --uc-window-control-width: 0px !important }

#navigator-toolbox{ padding-top: calc(29px + var(--uc-titlebar-padding,0px)) !important }

#toolbar-menubar{
position: fixed;
display: flex;
top: var(--uc-titlebar-padding,0px);
height: 25px;
width: 100%;
overflow: hidden;
}

#toolbar-menubar > .titlebar-buttonbox-container{ height: 29px; order: 100; }

#toolbar-menubar > [flex]{ flex-grow: 100; }
#toolbar-menubar > spacer[flex]{
order: 99;
flex-grow: 1;
min-width: var(--uc-window-drag-space-width,20px);
}

#toolbar-menubar .titlebar-button{ padding: 2px 17px !important; }

#toolbar-menubar .toolbarbutton-1 { --toolbarbutton-inner-padding: 3px }

/* TABS: height */*|*:root { --tab-toolbar-navbar-overlap: 0px !important; --tab-min-height: 20px !important;
--tab-min-width: 80px !important;

#tabbrowser-tabs {
width: 100vw !important;
}
#main-window:not([chromehidden*="toolbar"]) #navigator-toolbox {padding-bottom: var(--tab-min-height) !important;}

.tab-background {
border-radius: 8px 8px 0px 0px !important; border-image: none !important;
}
.tab-line {
display: none;
}

.tab-close-button {
color: red!important;
}

When I click the download button I usually see my recent downloads and click open the file directly from the drop down. After 10-20 downloads are performed the drop down no longer shows my recent files until I restart firefox. I think the issue is once you hit a certain amount of downloads the preview drop down no longer works. Is this a know bug? Its happening on any pc, im on version 104.0.2 (64-bit)

I have Firefox installed on Linux (Fedora), Windows, and macOS, and on Windows and Mac, I can use ctrl (cmd on Mac) + shift + Y to open the Bitwarden extension. On Linux, this instead opens the downloads library (which is normally ctrl + shift + j...). Is there any way to change the shortcuts on Linux to be the same as the other two OSes? Judging by the many many open questions on this site about changing shortcuts, I'm not holding my breath...

I am not able to download any kind of file, from any kind of website to my disk. I am able to select open on the download dialog, and this will open the file and save it to the temp directory firefox uses for this function, but this does not save the files to disk/the download folder like I want to. I am unable to "Save image as..." as well, since this is considered a download. There is no record of these downloads even being attempted in the download history.

Please help! With the latest firefox update all of my bookmarks (and I have hundreds) are now gone!! I went on online to find help and the help was confusing and I couldn't figure out how to reload my bookmarks from the backup. Please walk me through the process step by step, I really need all of my saved bookmarks that I save articles for research, etc. Thank you

I didn't change or adjust anything, but when I opened Firefox this morning some websites are displaying differently. On some websites, the font size is smaller than 'normal' (see attached Wikipedia screenshots), some font styles have been changed (see attached Serebii and Archive of Our Own screenshots), and some websites are not displaying properly (see attached tumblr screenshots). I have cleared my cookies, cleared my browsing history, reset my browsing and font preferences, disabled all of my add-ons,disconnected from my VPN, logged out and back into Firefox, restarted my computer, and uninstalled and reinstalled Firefox, but the issue still persists.

I'm aware I can custom adjust the font size, which solves the sizing issue, but not the display or changed font.

I've included screenshots of the issues, as well as Chrome screenshots for comparison.

Is there anything else I can do to fix this? Thank you for the help!!

I'm running Debian Stretch and the packaged version of Firefox (91) runs fine but seems a bit dated. I installed ver. 104 manually and everything is fine except that there is no audio. I changed the setup Privacy and Security Autoplay to 'Allow Audio and Video' -- no audio. I've restarted in troubleshoot mode -- no audio. Other browsers, including ver. 91 of Firefox have no trouble with audio. Any ideas? On quitting I get these messages:

3 /opt/firefox 0 $ firefox [GFX1-]: glxtest: libEGL missing methods for GL test [GFX1-]: glxtest: libEGL missing eglGetDisplayDriverName

3 /opt/firefox 0 $ [GFX1-]: glxtest: libEGL missing methods for GL test 12:03PM Tue 6 [GFX1-]: glxtest: libEGL missing eglGetDisplayDriverName [2022-09-06T19:03:40Z ERROR mp4parse] Found 2 nul bytes in "\0\0" [2022-09-06T19:03:40Z ERROR mp4parse] Found 2 nul bytes in "\0\0" [2022-09-06T19:03:40Z ERROR mp4parse] Found 2 nul bytes in "\0\0" [2022-09-06T19:03:40Z ERROR mp4parse] Found 2 nul bytes in "\0\0" [Child 4452, MediaDecoderStateMachine #1] WARNING: 7f1908378700 OpenCubeb() failed to init cubeb: file /builds/worker/checkouts/gecko/dom/media/AudioStream.cpp:281 [Child 4452, MediaDecoderStateMachine #1] WARNING: Decoder=7f1909b8ac00 [OnMediaSinkAudioError]: file /builds/worker/checkouts/gecko/dom/media/MediaDecoderStateMachine.cpp:3979 [2022-09-06T19:05:39Z ERROR viaduct::backend::ffi] Missing HTTP status [2022-09-06T19:05:39Z ERROR viaduct::backend::ffi] Missing HTTP status

Hi All,

A few of my sub-folders within my bookmarks do not show up in the Toolbar and Sidebar. The same bookmarks' sub-folder are present in the Bookmarks library (that's accessed from Firefox settings).

Could you please help with how I can get these sub-folders to show up in the Toolbar/Sidebar, please.

Thank you.

I just upgraded to a 4k monitor and the blinking cursor is so thin I can not see it. I have adjusted the thickness in windows 10 with took care of the issue with Microsoft applications but I can't figure out how to make it thicker in Firefox.

I've tried changing from Firefox theme to System theme but there was no change. Fonts is set to Segoe UI 17.

I have System theme -- auto enabled.

Any suggestions?