Firefox Community Forum

Hi!

I am getting messages that I am blocking ads for many of my internet requests. I had never received these before but all of a sudden I started to get them. I have tried a number of things but nothing works.

I am running Windows 11 and do not have any Ad blockers.

Opening PDFs automatically with Firefox and, without any changes I might make, saving them with the download function in Firefox, actually ruins the functionality and data entry function of that file. Specifically this happens with PDF files downloaded from the (not all that amusing) PDFs from the FINCEN, (US Financial Crimes Enforcement Network). I do not see why and how Firefox thinks it is allowed to change files that are simply downloaded and saved on Firefox.

In other words, it seems that Firefox strips away certain "permissions" and/or "functions" (like built-in lookup, menu or choice boxes). This means that the file so downloaded via Firefox can no longer be used to properly fill in data, or to look up and choose data items within the file. (I see many times that ANYTHING having to do with "permissions" tends to be an intractable and unsolvable problem for software makers & experts, so, if you do not know right away how to solve the problem, it will probably take you several years to figure this out.)

The PDF in question is created by a government agency. If you have ever dealt with a government agency, then you know that they act sort of like Adobe or Microsoft: "They don't respond, or they do respond & say they do not understand, and if they understand, they are either unwilling or unable to fix the problem."

If there is a switch or option within Firefox, which lets me tell Firefox "Save this file exactly like it is received, nothing added or removed!", that would be nice. I just have not found such an option yet, and it would be nice if it might get provided someday.

I will share my browser data, but I am sort of convinced that a detailed question like mine will not be addressed within that shared data.

Since Thursday (new update rolled out Wednesday) I have lost all of my open tabs in one window.

Previously, when opening up Firefox, it would reopen my previous window with all tabs.

However now, even with the setting ticked in General (Startup --> Open Previous Windows & Tabs), it no longer does this. I have to go to Menu in the top right, History, recently closed windows, then guess at which window I should reopen.

Will this be fixed in the next update?

Its not a new issue that I am raising but facing this issue many times just could not get the time and was not sure why it was happening. So, I use Firefox's Container Extension and logged in to two different accounts from both the containers. So, if am closing the browser and have not closed the tab that has the logged in account attached it would be log me out the next time I open the browser. In fact, it logs sometimes log me out of the account that is open in the other container. Although there's catch in it, if I rather closing the tab I put all of them in a group and close the group and open a new and then close the browser then everything would be fine but if somehow I miss it, its certain that I am going to be logged out for sure. Sometimes, in some of the sites, last time as far as I can remember I have been logged out of all the accounts. I don't its something to do with firefox or extension but just wanted to raise the issue.

How to increase buffer time for video, how to load at least 2 min of video instead of how it's now about 30 seconds. I live in the countryside and I can't change my internet speed (I tried). I have the fastest speed that they can send, but still I can't watch anything normally because it constantly stops videos to load more

Dell Optiplex desktop, Linux Mint Mate 22 OS. Currently updated to FF 150.0. For several months, this machine has failed to load bookmarks, approximately half the time. Banner message displayed advising user to load bookmarks. Closing and restarting FF usually (but not always) corrects this. Also, last month or so, bootup displays single window, even if there were two or more on previous shutdown. In settings menu, FF is set to re-open previous windows and tabs. Also on boot, this machine takes much longer to open FF than an older Dell Inspiron laptop, which is otherwise slower than this desktop. When FF icon selected in desktop, just before it opens, the tray flashes the missing extra window but it is not shown or available in the tray and does not load.

The two machines are set up identically, both in FF settings and with the same add-ons- Privacy Badger and uBlock Origin. Just looked in Synaptic of both machines and the laptop shows two FF items as installed- FF 150.0 +linuxn The FF Web Browser and FF-en locale English language pack. The desktop Synaptic shows no FF items installed (!). The laptop runs as expected, opening FF with all windows and bookmarks. Both machines received FF 150.0 via update manager.

wenn ich in der Suche eine Webadresse eingebe, kommen Vorschläge. Klicke ich dann eine Webadresse an,dreht der Kreis von Adresse neu laden. in der Chronik sind zig Einträge: https://www.google.com/aclk?sa=L&ai=DC...=1&rdrflb=1&rdrflb=1&rdrflb= dies geht so weiter,bis ich abbreche. wer kann helfen?

May 2026 Firefox app update has been a disaster for me. Nothing loads, and many log ins, like microsoft or facebook no longer possible. Too many new features take too much data and just never load anymore. Eventhough I set it to delete history on exit, because it saves long lists of history anyway, slowing or stopping all. Password manager suddenly has bern giving the wrong passwords, (suggested ones instead of my registered ones?), so I got logged out of my microsoft and meta accounts on all devices. Does anyone know why? I would appreciate all ideas and remedies. Thank you, cb

Somehow NordVPN caused my Firefox bookmarks on my macbook to be deleted (Nord has caused more problems than I've had in years). Many of the bookmarks are still on FF on my ipad. I've setup sync on both devices (at least I think so), but when I hit the sync button on my mac, the ipad's bookmarks don't appear on my macbook. On my ipad mozilla account 'everything I'm using and signed into' shows the macbook was active 7 minutes ago, and the 'sign out' box is available, so I must be signed in. Firefox on my iphone is the same. Any suggestions. It's getting to the point where it would be easier to setup new bookmarks.

Whenever I try to connect to this sight I get PR_END_OF_FILE error. I am using windows 11. I have looked at numerous suggestions on how to resolve this without success. I am reluctant to create a new profile since I use Firefox on numerous computers.

Firefox has been my default browser on Mac IOS for several years. I update Firefox regularly, the last being several days ago. I've recently had problems with Firefox freezing as I sometimes manually log-in to Amazon. All other tabs are affected. I have to quit, reopen.

  It is now affecting my purchases on Amazon.  I'm asked to provide a security code from my bank to complete the purchase. The code is initially accepted, but quickly the purchase is rejected by Amazon. Both Amazon and my bank said that there were no blocks on my account.
  I subsequently went to Safari, where I have no problems whatsoever with Amazon. Amazon has not asked me for a bank code to domplete the purchase.
  I think the problem is in my Settings, but it all looks okay. Cookies are cleared. Suggestions are appreciated. Thanks

Since around April 2026 , the "Show in folder" option (in "Display the progression of ongoing downloads") does not work anymore when a file is downloaded on a NAS drive . I use a Qnap TS-231P NAS .

There are certain websites that, on firefox only, display apostrophes and quotations as Russian letters. For example, on google docs, if I type "He's such a great friend" it will display уHeТs such a great friendФ. When I open the document on the app, it is normal, but I haven't been able to figure out why it does this on my computer. I use Mozilla Firefox for Fedora 149.0.2 for reference.