Firefox Support Forum

unable to see cast option on few websites like most websites. I tried to install the fx_cast option where I can see the cast icon now, but when I play youtube videos and click on cast button (fx_cast), its not detecting my google chromecast. Google chromecast is detected in edge and chrome browsers, but why is my TV not detected in firefox. Like I cannot see the cast icon on many websites where I see the cast icon on edge and chrome browsers, the icon itself is missing in many websites. Please make sure the wireless TV is atleast detected in firefox browser. I have tried so many changes and it does not detect my wireless tv or does not show my chromecast tv signal. Something is wrong with your browser, its not working fine. I have enabled the flag casting in the browser about:config as well. Appreciate it if you can please fix it asap as the streaming is abs fine in firefox browser and the same website runs slow in chrome and edge, which is why I need to use firefox to cast to my tv. Appreciate your help in this regards.

Thanks Manu

Normally there is no difficulty searching a pdf with a pdf reader. How does one do it in Firefox?

Note that ctrl+shift+f and ctrl+f do not work.

John

It seems since Firefox 100 the address bar has taken to being white-on-white, making it nearly impossible to read. There isn't any issues with light themes. It doesn't matter if I change the Windows 10 default app mode to light or dark. Light themes have black text on white background, but dark themes have white text on white background. Any ideas?

Hi,

I'm using Duckduckgo as my search engine, but when I type in a search string, it Firefox prepends it with https://html.duckduckgo.com/html/... This opens a search page that doesn't follow my dark theme. When I click on a link, another link is added that creates a link back to the same URL, causing a loop. This never happened before I upgraded to Ubuntu 22.04 & the latest version of Firefox, 100.0.2. How can I change this back?

Thanks!

   -John

I need to turn off my Delete cookies and site data when Firefox is closed setting.I have wrongly turn on this setting i need to turn off this setting.please help me to change it.

Hello,

I have autofills and login savings disabled, but browser still seems to be saving form data including usernames. How do I disable browser saving any form inputs altogether?

Having any google related webpage open for more than a couple of minutes causes it to disconnect (gmail, calendar). This results in no connectivity to any Google services. Opening new tabs will refuse to load even Google.com. The only fix is to completely close out of Firefox and relaunch. But having gmail open for a few minutes will result in it disconnecting again.

The issue persists in 'troubleshooting mode' as well as after doing a refresh. I have experienced this now for the past couple of weeks on my Windows 10 work laptop. I have also seen this on 2 different Linux machines in the past few days. I had attempted to disable http3 and telemetry settings from an older post I had found, but no luck. Not sure what else to try at this point.

Is it possible to move the address bar above or below the Bookmarks Toolbar in Firefox 100.0 (64 bit). If not, can you provide a link to the latest version of Firefox for Mac OS X Catalina (10.15.7) that does not have the address bar on the same level as the Bookmarks Toolbar.

Many thanks.

My Firefox has suddenly stopped working when websites have menus you need to scroll through on the right side. Example: websites where you are drilling down through filter options, or in Ancestry where you will typically open a record in the hints screen and scroll down through the detail. The right scroll navigation causes the whole page to scroll up and down; there's no way to navigate down in the sub-display. I have run FF in safe mode, and done a scorched-earth uninstall/reinstall and the problem persists even with no plug-ins restored. This is on a machine running Windows 11. The machine crashed right before this became a problem. Sites work in Edge without issue.

How do I shut off "Firefox prevented this page from automatically redirecting to another page"? I have pages that need to refresh automatically and this function is preventing these pages from automatically updating. I have searched settings multiple times and have not been able to fix this. This just started after a Firefox update a month or so ago. PLEASE HELP!

I have a Netgear Readynas attached storage device. I am unable to connect to this device using Firefox. I encounter : Error code: SSL_ERROR_UNSUPPORTED_VERSION

It is not an dangerous site, it is my network storage device.

Is there a way to configure Firefox to connect to this device? Thanks for any help

I had jira as my default search engine (https://jira.<mydomain>.com). This continues to work on my existing profile. But i am unable to add it on a new profile, I get an error "Firefox could not install the search engine from: https://jira.<mydomain>.com/osd.jsp"

So, i tried copying the existing profile folder and using that folder for the new profile, but firefox removes the jira search engine and gives me a warning saying that the default search engine was changed to Google (screenshot attached)

Is there a way to get this added via a hack of some kind? I wanted separate profiles so that I keep my project profiles separated - bookmarks, cookies, scripts etc.,

Hi,

I would like to change the light grey hover color on menus (e.g. yellow), see attachments, probably using userchrome.css.

Does anyone know the correct code to do this please?

Thanks in advance.

I have been having an issue, since just before the update to 100, where Google sites stop responding. Gmail will display banner at the top "OOPS - The system encountered a problem...", Google search from the search bar will do nothing, Google Maps will not load and any google web page will not load or refresh. Closing Firefox and restarting it will fix the issue, temporarily. At first I thought it was any web page, but I have tested other search engines and web pages, using Firefox while the Google pages are unresponsive, and it is limited to Google pages. I can open the affected Google pages with Edge, while Firefox is still "locked out".

Has anyone else noticed this issue?

The background on the homepage link shortcut boxes keeps reverting to black and text underneath to white on my off-white background when a new version loads. I've used Colors to customize the look of my firefox but can't find any control for that. Once a new version kept the boxes white and the text black but now it's back to black again. Where is the control to fix this?

I use the recent activity page as a homepage with the icons of the websites that I most frequently use. but i can't figure how to adjust/pick the icons (websites) that I want to appear on this page. Something is picking them for me. And when I delete an icon another one pops in place but is generally a website I rarely use. How can I choose the icons (websites) that I want to appear on this page?

I have Firefox 100.0.1 on my Mac desktop, and Firefox 100.0 on my MacBook Pro laptop. I can no longer access my Microsoft OneDrive account via the web on my desktop, but I still can do so on my laptop. I have gone through your posted troubleshooting steps for Firefox on my desktop, to no avail. How do I get my desktop back to version 100.0 so it will work again? I can access my OneDrive account via the web on my desktop when I use the Safari browser, so the issue is definitely with Firefox version 100.0.1, and not with my desktop.

Hello,

Recently I was forced to install some "stuff" on my work laptop. Unfortunately, I am not quite sure what they installed. I have contacted my IT department and all I've gotten in response is that "we haven't blocked any browser or sites."

Since this update, I find that Gmail will eventually show an error and when I go to refresh the page, the loading screen never completes. Additionally, Youtube will eventually declare that I have no connection and at that point I can no longer open new browser tabs.

I have updated Firefox, used troubleshooting mode, removed extensions, turned off ad blockers (uBlock Origin), and nothing seems to work—these issues always appear again eventually.

I would greatly prefer to not use Chrome, so if there is anything I can do to fix these issues I would be all ears to know what it is.

Thank you, John

In order to more convenient drag-and-drop interface, I need a fixed fixed space in nav-bar like Edge. For now we can add a flexible space on it. But it's flexible and it will disappear when I use a side window. And I can't drag over titlebar-buttonbox-container Please help me. Thanks!

Similar to: https://support.mozilla.org/en-US/questions/1329194 https://support.mozilla.org/en-US/questions/1298089

In KDE 5.24.4, Linux. I started to have some issues with "Open containing folder" probably because I installed many Gnome apps which may cause bad configurations in my system.

I suspect this cause this issue even though I don't really have gnome file manager:

https://polywogsys.livejournal.com/309405.html "Gnome based file managers, Nemo/Caja/Nautilus provide the entry org.freedesktop.FileManager1. So it doesn't matter what you set as your default application for the filemanager mimetype - as per the freedesktop.org standard, firefox will always select a filemanager based on dbus (if it's there)"

But because the mimetype points to "dolphin", I dont really have other explanation either: $ xdg-mime query default inode/directory org.kde.dolphin.desktop