I am on Windows 11, PC with 80GB Ram (truth).

Firefox has the laggiest video across not only Youtube, but streaming sites. It's sometimes a 5 second delay, often 12 and I've waited 24 seconds on some sites. This does not happen on Edge, Chrome----I switched to firefox for good reasons but I'm at a point that work is slowed down If video is so inconsistent.

I did have it working once ---lots of turn this on, turn this off, about config stuff but firefox--in one of it's routine updates blew ALL My configs out of the water, didn't honor my save settings during the update and here I am back at zero.

What is the top list of things to do that will mostly likely guarantee a sound video experience

On no other browser I've used have I had to toggle hardware acceleration off? on? turn my ad protection off, clear my cache weekly? These routinized hoops to make it work suck.

I want set and forget----

again clearing a browser cache has not been an issue with any other browers to assure performance, not for me in 8-10 years.

I recall it was off for a long time before, but this button came back recently with Nova. Is there an about:config flag to hide it? Or is this something that I need CSS to deal with?

I'm always on the lookout for new/handy userscripts. Just wondering what ones that you use?

i just saw the go back campaign and it was nostalgic indeed. currently my main is brave because of the automatic ad blocking. i'd like to know if firefox now has the same function. its the only thing i like from brave. firefox is my backup if some sites wont load. also the page source is easier on brave, like in chrome, so i can get images from the website for editorial use. i dont remember firefox allowing for such function with their tools.

I used to be able to close tabs using a the standard little "x" icon on each tab. Now its gone.

That means I have to click on the tab to close it.

That means I have to wait until the page is entirely reloaded.

On a cellular internet connection - or any connection that isn't always highspeed - that's a real pain in the ass.

WTF, Firefox?

Clicking the shield icon used to bring Site information window and View Certificate option. Now clicking it does nothing and just show the cert is verified, no option to view certificate.
(Version 159.0)

I originally wrote this for a friend. Here is what I wrote with minor modifications. I hope everyone finds it useful because I saw similar requests on the Firefox support forum.

Problem

A user opens the "Default Apps" section of Windows Settings and clicks on "Set defaults by apps", only to find two Firefox entries in the list. Why?

Solution

The Firefox installer may register itself twice with the system, once under HKEY_LOCAL_MACHINE and a second time under HKEY_CURRENT_USER:

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\SOFTWARE\RegisteredApplications]
"Firefox-308046B0AF4A39CB"="Software\\Clients\\StartMenuInternet\\Firefox-308046B0AF4A39CB\\Capabilities"

[HKEY_LOCAL_MACHINE\SOFTWARE\RegisteredApplications]
"Firefox-308046B0AF4A39CB"="Software\\Clients\\StartMenuInternet\\Firefox-308046B0AF4A39CB\\Capabilities"

Delete the right key (NOT both). If Firefox is installed for the entire machine, delete the HKEY_CURRENT_USER entry once for every user. If Firefox is installed for one user only, delete the HKEY_LOCAL_MACHINE one (needs admin privileges).

Further reading

Firefox may have duplicate registration data under:

• HKEY_CURRENT_USER\SOFTWARE\Clients\StartMenuInternet\ (e.g., as Firefox-308046B0AF4A39CB)
• HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\ (e.g., as Firefox-308046B0AF4A39CB)

Again, delete the right one, although these don't contribute to the problem mentioned above.

If one keeps the tabs in a session and closes and reopen the browser, firefox will not contact and download those sites until the user opens the specific tab.

But if the sites are saved in bookmarks or history, and the user opens multiple, the sites will load. This will often cause a 429 error because sites don't wanna be bombarded by requests, rightly so.

So, is there a way to put bookmarked sites into the tab bar but without loading the sites?

Whenever I'm on Reddit on the desktop, typing into the comments field or the body of this posts is very difficult because the UI and cursor are about 0.25-0.5 seconds behind my actual keystrokes. Oddly enough, I can type into the title of this post with no lag, but the body is very laggy. Switching to markdown mode does seem to fix the lag, but I like to be able to format text, generally.

This seems to have started within the last week or so. I'm running FireFox 159 on Windows 26H2. Installed extensions are UBlock Origin, iCloud Passwords, and iCloud Bookmarks.

Was playing ark when I noticed a popup window appear for a couple seconds. I checked task manager but didn’t see anything suspicious and windows defender didn’t find anything, after I was done gaming I tried opening Firefox and got a message saying it’s corrupted and unreadable. I’ve been using Firefox for a couple years and never encountered this, I’m just wondering if anyone else had this issue before. I’ve Already reinstalled

So it seems the 157 issue of not remembering upload locations was fixed in 159 just now as discussed in https://bugzilla.mozilla.org/show_bug.cgi?id=2077656 but it looks like it's still not been resolved for the about:debugging page when loading temporary add-ons?

It still does the incorrect behavior that started in 157 of looking at the most recent upload location instead of where it was uploaded from last. Was wondering if anyone else has tested this behavior after updating.

Looks like this is now a recognised problem, there has been contact with github developers, and here is a couple of issue numbers, to keep track of it.

https://bugzilla.mozilla.org/show_bug.cgi?id=2059903
https://bugzilla.mozilla.org/show_bug.cgi?id=2085006

im getting ragebaited by this either premium or firefox feature and i genuinely can't figure out how to fix or turn it off, when i skip forward in a video itll do this red pill skip animation, and then my media controls will disappear entirely

if i switch to chrome on the same account with premium, it works, and if i switch to a private browser it works but the pill thing doesn't pop up at all.

Only two work well

The new PDF viewer is fine and all, but there is one bug with it that needs to be addressed and the sooner the better. As I wrote in the title, if I open PDF in the new viewer and try to download it, it always uses the name "document.pdf". Right click on the PDF and choosing Save page as has the same result. The only workaround I found so far is to go back to the page that linked said PDF, right click the link and choose Save as. That is the only way to save PDF under its proper name. And that's very annoying. This really needs to be fixed.

My keyboard has several media keys, however, only the "pause" key actually works. The skip/fast forward ones aren't recognized. Is it possible to manually set which keys are used?

nice to be back and see the fox runs good now left it for a long time after the slow downs bugs and it just up and crash at random times but dang man its nice now runs good and fast so no more chrome as the main browser 🦊

bro why this makes me sad ? 'Come back to Firefox.'

This has been going on for a few months now and its making want to switch back to chrome. Theres about a 20% chance when connecting to proton vpn that firefox will buffer and stall (forever) until i close and reopen it which makes the pop up appear "an instance is already open do you want to close" and so i have to close it on that pop up before opening it again. Then sometimes it works but other times all my tabs are blank and gone and dont appear in history so they are just gone.

I live in the UK so i kinda have to use a vpn for a good amount of sites. Is this just an issue between firefox and proton or is there something i can do to fix it?

Anybody else have their Reddit sorting buttons go missing from the front page? Mine are gone, but they are on sub front pages. If I load up chrome(horror) the buttons are there. I have not changed any of my extensions, and I just wiped my history in case it was getting corrupted somehow.

Thoughts?

Using on MacOs. Tabs move to the "first tab on the left" when I click on them. How to stop this from happening?