Firefox Community Forum

I have a lot of Firefox windows and tabs open, and I really don't want to lose my session.

I wanted to open a webpage in Firefox in fullscreen mode. But evidently there's some kind of serious flaw in Firefox that makes it incapable of opening webpages in fullscreen mode. Everyone says the only workaround is to open the webpage in kiosk mode. So I tried it.

But now I have two big problems:

1. One of my Firefox windows, with all its tabs, is stuck in kiosk mode. (Even if I close the window and then restore it with Ctrl+Shift+T, it's still in kiosk mode.)

2. All new Firefox windows I open with Ctrl+N are also stuck in kiosk mode.

I don't know what to do, and I'd really appreciate any help. Thanks!

Whenever I try to open a pubg.com web page (for example https://pubg.com/en-asia/news/8727) I get a very dark outline of the page with no access to any of the links. Can you assist?

Subject: OCSP Must-Staple Behavior Observations in Firefox (Including iOS Platform)

Dear Firefox Team,

We have been conducting tests involving certificates with the OCSP Must-Staple extension and would like to share several observations regarding Firefox’s behavior across different platforms:

General Compliance with Must-Staple: On most platforms, Firefox correctly enforces the Must-Staple extension. That is, if a certificate includes the Must-Staple flag and the web server fails to provide a stapled OCSP response, the connection is appropriately terminated.

Unexpected Behavior on iOS: However, we have observed that Firefox on iOS does not appear to enforce this requirement consistently. Even when the server does not provide a stapled OCSP response, the browser still establishes the TLS connection. We are unsure whether this is due to platform limitations or an implementation inconsistency.

Redundant OCSP Requests Despite Stapling: Additionally, we found that Firefox still initiates an OCSP request even when a valid stapled response has already been provided by the server. This behavior not only degrades performance but may also introduce privacy concerns, it contrary to the original privacy and efficiency goals of OCSP Stapling.

Hi, for some reason, I am severely restricted in size when uploading files to Facebook, with a maximum .jpg size of under 50k. I do not have this restriction in Microsoft edge, or on my phone, only on my laptop. I do not have an ad blocker installed that I am aware of. Appreciate any help. Cheers, Merv.

Why do I get "Could not establish connection. Receiving end does not exist" when I use Roboform's option? I think this started after a Firefox update. My whole homepage changed with the update.

I use Firefox on many computers in many locations and they all use the account sync feature. However, at one location, a school, there's a filtering system in place called Securly. To get through the school filters, you have to download a certificate and install it. I do that, and web browsing works fine. But, syncing does not work. It's as if the syncing feature doesn't use the installed certificate. So, to sync, I have to use my phone hot-spot from time-to-time. It's a big pain, however, when I've set or changed a password at the school and expect it to be available in all my other computers but I've forgotten to do the manual sync before I left. Is there a way to get the sync process to use the installed certificate?

Thanks!

-Farren

Firefox has an extensive History record of websites/pages viewed. Is there an Add-on / utility that will allow you to VIEW the page data - as it was displayed on the date it was accessed & NOT re-load the page ?

Basically ability to view a page 'offline' as another browser used to be able to allow you to do.

Firefox has just introduced wallpapers for browser home page. I cannot get it to work. It's either cropped too small or pixilated, is there a setting I need to adjust, or a particular image format? So that it looks ok.

There is a preference "media.gmp-widevinecdm.visible" When it is set to true we can see the Widevine addon in Add-ons and Themes. When Firefox is close the setting reverts to false and the addon is no longer visible.

Is this expected behaviour?

We cannot get Netflix to play DRM content. We are currently getting the UI3012 error. We updated the prefererence "media.gmp-widevinecdm.force-chromium-update".

I don't have a netflix account so I can't test on my PC, but setting the above preference on my PC and visiting netflix.com seems to be enough to trigger the installation of Widevine, as I have a folder called;

F:\Users\Tanya\Profiles\ownri05i.default\gmp-widevinecdm\4.10.2891.0

On my PC.

My brother, who is the one experiencing the issue, says he does not have the gmp-widevinecdm folder in his profile folder. However, before updating the force update preference he was getting the F7701-1003 error which changed to UI3012 after setting that preference.

The problem started when I updated his PC from a very old Windows 10 21H2 patch level (2486), to the current 21H2 patch level 5854 and updated Firefox 115.9.1 to Firefox 128.11.0

Will look into OS version upgrades later in the year, but for now I'd like to get Netflix working again.

I want to save a shortcut on my desktop that will access a particular site in Firefox using private browsing. It appears (?) years ago you could do that by adding -private to the end of the target. That appears to no longer work.

Suggestions?

I saw my same issue described in an archived thread "Several users have reported connection issues with Google sites including YouTube. This has been linked to the "zero round trip resumption" feature. That is intended to speed up website connections, but there seems to be some kind of compatibility issue. Currently, there is only a hidden way to disable this and see whether it helps".

I tried the method given (going to about:config and turning security.tls.enable_0rtt_data to false) but it did not work.

I tried uninstalling and reinstalling, but I accidentally dragged the Firefox in the installer directly onto my dock (on Mac) and that Firefox was working perfectly fine. But I noticed there was "Firefox" drive running on my system. To fix it, I realized I had to drag the Firefox in the installer into my applications folder and run that Firefox. So I did so, and ejected the Firefox drive.

Using the new Firefox that was actually installed in my Applications, I am now stuck with the same problem of Google sites not being accessible.

Dear Firefox Team,

It has re-occurred to my Firefox Browser of the latest version of 115.24.0 with some websites I have recently visited however which has appeared 8 grids of blank or white pages again under "Recent Activity" as attached with the image for your technical troubleshooting suggestion.

Those 8 grids of Recent Activity in the older version of Firefox browsers used to have shown colorful graphics or images representative of the recent websites I visited in the recent past.

May I know what I am supposed to do to recover those graphics or images?

Kindly offer any suggestion or solution?

Thank you for your kind attention.

Why lately must I login to all my apps when I use firefox? Facebook, AOL, etc....? How can I turn off this function. I see a checked box not accessible that says "Clear Cookies when firefox logged off" but I can't uncheck. Please advise. Thank you

firefox not discarding tabs automatically even though i have tab discarding on in about:config via "browser.tabs.unloadOnLowMemory=true" "browser.tabs.min_inactive_duration_before_unload=60000"

also if i discard them manually from about:unloads manually whenever i restart firefox all discarded tabs come back to life is it supposed to do that?

Thanks