Diễn đàn hỗ trợ Firefox

I am using Ubuntu 23.10.1 with KDE Plasma desktop environment. Since recently I've been experiencing the following problem with Firfox document viewer: after a period of inactivity, PDFs become unreadable, and seem to cumulate everything that was displayed on screen (see screenshot). Ctrl + F5 does not help, and neither does closing the window and opening a new one with a link to the file. KDE Document Viewer displays the same file correctly.

When trying to install any extensions on either the Mozilla Addons website or directly via the Extension settings, it fails to do so.

I've attached a screenshot of the Mozilla Addons website when it fails to install the extension. On some other addons that I've attempted in the past, it just shows the throbber forever.

I have checked the Multiprocess Browser Console and it says that it fails to move the file because it's locked (NS_ERROR_FILE_IS_LOCKED). I have also attached a screenshot of that.

When searching with google it always opens a new Tab with some not working Address. Whether i just search or click on pictures or look at a picture more in detail it always opens this tab: Look at picture: At this point it is really annoying and in the settings of the browser i don't seem to find a solution. Please help.

I just bought a new laptop and downloaded Firefox as I have used it for years. Although I imported my passwords and they are correct it will not log in to sites I need for work. It isn't telling me I have the wrong pw or id, it just does nothing.

I have updated windows, I have uninstalled and reinstalled....I don't know what else to do...any suggestions?

thanks

I use Firefox as my browser but since yesterday I am unable to use it. Each time I click on the firefox icon I am directed to a French Microsoft browser - are you able to help?

John Winn

Hi there, my name is Alvimutmex. Every time a webpage loads with the Mozilla browser, a "not supported" message appears. Upon examining the settings, I found that Mozilla has to be updated. Would you kindly assist me with updating Mozilla? For example, I receive an error notification when I try to open (https://pdfmedicalbooks.com/).

I've been noticing that when I click History > Clear Recent history, after clicking and going back to History, it hasn't removed everything. I have Firefox on my Android phone which is set to clear history upon close. For for unknown reasons, its leaving sites from both desktop and phone apps after clearing.

I'm running Firefox v 115.9.1esr on my Mac.

Any ideas?

Can someone please answer how to reset firefox size after you've been using a bigger screen and go back to the laptop the top bar is lost way up and I cant catch it to move it to resize the firefox window. Using Fn and F11 to go into maximize mode doesnt help me at all cuz I end up in full screen on the FHD screen but cant grab and drag the window to resize it again - and please NO comments about using FN and F11 again. This is an issue thats been since years - cant figure out why ppl who are tryin to help think others dont know the difference between maximization and the window being bigger than the laptop screen and being lost. So FIREFOX key-shortcut for window size reset URGENT PLEASEEEE - Im having this issue couple times a week. To fix it I gotta go again to the bigger screen reduce the size of the window and then disconnect - which is soooo horrible.

I have the latest FF browser. I'm not using any proxy service, just spectrum connection. when i try to access my credit union account, i get this message

"Error: "WWF2TUh4dnM=" - You're using an outdated browser or are using a Proxy service which is unsupported. Please update your browser or turn off your Proxy to continue, thank you."

how can i get past this? All help appreciated!

https://tasmota.github.io/install/ This is an example of what i am tryingto achieve bit no matter on which site i am , i do not get to choose from ports and my devices and always faults out saying similar messages that the browser does not support web serial in one way or the other for any site doing similar task. error message is as shown in the image shared basically complains of browser not supporting web serial.

Hey, so, I've seen this question a couple times when I searched, but (a) there didn't seem to be any solution and (b) they were all regarding Macs and I'm on Windows 11 v 23H2. I keep getting bubbles saying that Firefox wasn't able to check for updates- not that it couldn't download or install updates, but it couldn't search for one. I also did the "about Firefox" thing and it gives me the same message. Both of these have been going on for a couple days and I have attempted restarting Firefox multiple times and did a manual update [125.0.1 (64-bit)] just in case there was a problem there. Now, I've tried the tips from the other threads (turning off the proxy, checking any anti-update policies, and checking the add.update.url in the config settings) with no luck. So in an effort to either bump the question or get any Windows oriented answers... Thanks muchly

Due to repeated issues over a week, I uninstalled Firefox days ago. Tried to Reinstall it repeatedly on same device several times. It was working before..BUT it keeps showing its downloaded on Settings but Firefox download page keeps showing "DOWNLOAD" Tried several times. Not my computer. Nothing works to resolve it.. Windows 11..

I have many tabs open at the same time and I'm noticing tabs from Urban Dictionary in particular are automatically changing to suspicious sites, quite a few porn sites in fact.

Is this something Urban Dictionary is doing to direct viewers to sponsors or is there a bug in my FF browser?

I have 3 laptops all running windows 10 or 11. These all share a docking station giving access to an extended display, keyboard etc. All laptops run fine with the docking station except for one issue with the newest laptop... The screen resolution, only on firefox on the one laptop, (everything else is fine) is completly out of whack. I have tried the zoom function but no luck. I have trawled the internet but all the solutions are from 10+ years ago and refer to different versions of firefox and windows. I am not a computer geek so please dumb down any advice.

Hi,

Some websites still managed to smuggle in popups despite all the blockings. I use as add-ons: privacy badger, no-script, ublock origin and recently tried popup blocker (strict) and even have the 'block pop-up windows' enabled. I also tried to fiddle around in ´about:config´ but nothing helps. I think it's a recent occurrence as I don't remember having this problem, let's say, a couple of months ago.

The funny thing is that this problem doesn't occur in opera-browser (in which I hardly use extensions).

The websites that this occurs are: arabicpost.net (a pop-up will occur about 10 sec after right-clicking a new tab). focus.de (a video pop-up will occur if there's a video in it). Again opera-browser blocks all of this. I expect there will be other websites to add in the future.

Please help. S.O.S. -> g.o.i.n.g..i.n.s.a.n.e!

The page https://www.stardock.com/products/groupy/update opens during the loading of the OS background processes. I have looked up on the windows task manager, the about:config and haven't found anything related to this process.

Whenever I get a link whether in an email from a verified sender or from using a site like Amazon, clicking on a link always results in "Hmm. We’re having trouble finding that site." This has happened ever since loading the most recent version of Firefox (124.0.2) and it is very, very frustrating. What is causing this? Even in "safe" mode this occurs. Please rectify this situation. I do not want to have to change browsers after more than 20 years with Firefox.

Robert Jonathan Blue