Update broke ability to choose where to open PDFs.

Adobe auto updated. The ability to choose where a PDF is opened or downloaded is now missing. Completely makes FireFox unsuitable for what I do. I did redo all the sett… (read more)

Adobe auto updated. The ability to choose where a PDF is opened or downloaded is now missing. Completely makes FireFox unsuitable for what I do.

I did redo all the settings to 'ask before'. Refreshed FireFox. Tried changing it in the popup where I choose what to print.

What do I need to fix?

Open 8 143

Strange scrubbing issue between Firefox, webm/mp4 and Cachy

Hello, this is the basic problem: The short version is that there is a problem with Firefox not interacting with the scrub bar and volume bar. (all other controls work fi… (read more)

Hello, this is the basic problem:

The short version is that there is a problem with Firefox not interacting with the scrub bar and volume bar. (all other controls work fine) We know it's a Firefox thing because everything works with Brave. (or an interaction between Firefox and the OS at least, Firefox is heavily involved)

There is more detail and we have done some work on it here: CashyOS forum post

You can use the Firefox manifesto V0.2. video for an example, as it displays all the above problems for me.

I can get you guys whatever other data might be needed, but I kinda need an idea where to look to try and fix this, as all the other posts I have managed to find don't seem to have similar enough issues to work.

Edit/Update: I have done some further testing and discovered that it is firefox's default/built in player that is the problem. I can use the 'site specific' players (like from reddit) just fine. So there is something happening with that default one.

Open 7 82

Download Setting are not applied.

Hi Team, I am facing an issue that i have setup the download setting of PDF file as save file and automatically download in my system. but firfox is not working as expect… (read more)

Hi Team, I am facing an issue that i have setup the download setting of PDF file as save file and automatically download in my system. but firfox is not working as expected.

Open 4 1 61

The tab bar theme/interface looks terrible- why would you do this?

How could you change my tab bar to this awful rounded, non-dark, purple orange gradient with atrocious looking outlines? Why would you change something that has worked fo… (read more)

How could you change my tab bar to this awful rounded, non-dark, purple orange gradient with atrocious looking outlines?

Why would you change something that has worked for years. Please bring back square tabs. Even in compact mode the tabs still look terrible and there's no option to put this back.

How could you do this? I'm having reading my tab bar at this point with the gradient. I shouldn't have to install third party add-ons or themes to make it work like it has for years.

Open 2 3 61

Excessive use of memory by Firefox.

Hi guys - I am running Firefox 157.0 (aarch64) on a Macmini M2 pro with 32GB RAM . I am regularly receiving messages that my default browser, Firefox, is the largest cons… (read more)

Hi guys - I am running Firefox 157.0 (aarch64) on a Macmini M2 pro with 32GB RAM .

I am regularly receiving messages that my default browser, Firefox, is the largest consumer of that RAM. This is what I received this morning shortly before my system shut itself down. I did have many files open but noticed that Firefox is consuming 33GB of my RAM. Is this normal?

Open 4 51

I cannot open links in Firefox. When I tap a link, it does not open correctly or does not give me the option to choose another application. I would like to open links using a different app instead of Firefox. Please help me change this setting

When I tap a link, it opens in Firefox, but I want to be able to open the link with another application. I can't find how to change this setting on my Android phone. Plea… (read more)

When I tap a link, it opens in Firefox, but I want to be able to open the link with another application. I can't find how to change this setting on my Android phone. Please tell me how to choose another app for opening links.

Open 1 51

Missing scroll bars

When I login to a site where there are many widgets (windows) on the screen - the windows are all missing scroll bars. If I login under a different browser they are there… (read more)

When I login to a site where there are many widgets (windows) on the screen - the windows are all missing scroll bars. If I login under a different browser they are there. This happened about a week or so ago. It has to be a setting change in Firefox. Please advise.

Open 4 2 50

what do i need to do so that firefox can be used on albertsons store website

Albertsons grocery store states they support firefox. However I can't use firefox I have all sorts of issues so I have to close firefox and use chrome. What do I need to … (read more)

Albertsons grocery store states they support firefox. However I can't use firefox I have all sorts of issues so I have to close firefox and use chrome. What do I need to do to get firefox to work at their grocery store website?

Thank you Diana

Open 8 41

Tabs no longer remember the file location of local folders

Hi, since the latest update, whenever I'm in a tab (e.g. email or personal website) and I go to upload files, all tabs show the last location of the last upload from any … (read more)

Hi, since the latest update, whenever I'm in a tab (e.g. email or personal website) and I go to upload files, all tabs show the last location of the last upload from any tab whereas previously they showed the location of the relevant tab. E.g. on a tab for my website it would previously open the location of my website files and if I switch to my email tab it would open the location of my email attachments. Now it doesn't seem to remember the loaction by individual tab it just starts in the location of the used loaction across all tabs.

Not sure if that makes sense, it's very annoying as I have to keep searching the location again between tabs.

Can this be changed back please so it remembers locations on a individual tab basis and not globally?

Thanks

Open 6 1 41

Bookmarks disappear

After a while bookmarks disappear from the browser tab and the only way to recover is to close the browser and open a new page that requires signing out of opened sites a… (read more)

After a while bookmarks disappear from the browser tab and the only way to recover is to close the browser and open a new page that requires signing out of opened sites and starting over. Just started with new update release.

Open 4 41

Transferring .URL addresses to bookmarks in Firefox and vice versa

I am trying to transfer a number of .URL addresses held in aUGREEN NAS over to bookmarks held within Firefox so that those URLs can be quickly opened using Firefox Windo… (read more)

I am trying to transfer a number of .URL addresses held in aUGREEN NAS over to bookmarks held within Firefox so that those URLs can be quickly opened using Firefox Windows Explorer or a similar file manager in an Android Notepad or indeed another browser. The URLs already in folders in the NAS drive and it would be great if we could replicate the NAS drive folders within Firefox.. Is there a simple way of doing this?

Open 2 31

addons.mozilla.org: "An unexpected error occurred"

Hello, I have had an issue for a few months now where certain websites fail to load. This is most easily reproduced on https://addons.mozilla.org, where I am shown the e… (read more)

Hello,

I have had an issue for a few months now where certain websites fail to load. This is most easily reproduced on https://addons.mozilla.org, where I am shown the error "An unexpected error occurred" on most pages, preventing me from installing addons.

This issue does not occur in a Private Window, in Troubleshooting mode or in Chrome or Brave, but persists in fresh installs of Firefox. In troubleshooting this issue, I have removed all program files, registry data, and app data pertaining to Mozilla / Firefox. In fresh installs, I can sometimes install an add-on or two before this error starts occuring. I have not imported any previous data.

I was previously installing from Chocolatey, but in my last clean install, I downloaded from the official website.

I am on Windows 10 and Firefox 157. I use Proton VPN (Paid) and have tried changing servers several times to no avail. Again, this only happens in Firefox in a standard window, Private Mode and Troubleshooting Mode are fine.

Screenshot 1 shows the issue from my most recent reinstall. I was able to install 1 add-on (SponsorBlock) before it started showing up. Removing the add-on doesn't fix the issue. Trying to access addons.mozilla.org via a search engine results in the tab icon loading for a second and no change happening on screen (Screenshot 2).

I experience similar issues on other websites, like trying to log into Bandcamp.com (logging in gives the error "There was a network error. Please try again."), but most sites work.

Loading https://addons.mozilla.org/en-US/firefox/ gives the following results in the Network Console:

Uncaught (in promise) TypeError: can't access property "pressed", target is null

   onChangePermissions chrome://mozapps/content/extensions/components/addon-card.mjs:893

addon-card.mjs:893:7 Reporting Header: invalid JSON value received. collect Reporting Header: invalid JSON value received. collect Reporting Header: invalid JSON value received. collect Reporting Header: invalid JSON value received. collect Reporting Header: invalid JSON value received. collect Reporting Header: invalid JSON value received. collect

Open 5 30

Why is it, that since this most recent update, my wireless headset causes youtube videos and shorts to load extremely slowly?

I have done thorough testing with other browsers, drivers for my headset, reinstallations and the common issue is the new firefox. when I change from my desktop speakers … (read more)

I have done thorough testing with other browsers, drivers for my headset, reinstallations and the common issue is the new firefox. when I change from my desktop speakers to my headset there has always been a slight delay in the crossover. however since the most recent update Firefox has made, Youtube shorts and videos dont load properly. this is only when using my headset. when you go to shorts, and scroll it will play them one after the next with no load time or at least very little. now however, it takes 10-15 seconds to load, but ONLY when i am using my wireless headset. Corsair Void Wireless Headset. I have done everything on my end, and after countless tests with other browsers it is only Firefox and has only starteed since the most recently update.

Open 2 20

old theme look

new update destroyed old firefox look i love those old sqarish tabs please give us option to switch back to old firefox look, themes, styles... in settings, i dont see it… (read more)

new update destroyed old firefox look i love those old sqarish tabs please give us option to switch back to old firefox look, themes, styles... in settings, i dont see it anywhere, the tabs were perfect like they were new look of tabs is horrible (at least to me) is there some way to return to old look. Ai said to me to play around with a userChrome.css file but i still cant get the old look no matter how much i try, it gets worse and worse, worst case scenario is it possible to send me a css file of old tabs / toolbar look or something i feel like someone moved every single furniture in my home, the feeling is terrible. new icons are okay but old toolbar and even search bar is better in older version, i loved more the old look why is there no option to revert back to old theme look i used for years.

Open 7 16 20

Using mouse to save/edit bookmark is different than with star

Switched back to grey top-bar and noticed that when using star to save/edit page/link is grey like rest of the bar, but when saving/editing link with mouse, it's still pa… (read more)

Switched back to grey top-bar and noticed that when using star to save/edit page/link is grey like rest of the bar, but when saving/editing link with mouse, it's still pastel

Why? I want them both grey.

Open 20

Firefox update of 30 September 2026

So PDF's can no longer be set to open in Adobe, but it now requires clicking before the document opens in Adobe. No setting whatsoever can change this. Is this a permanen… (read more)

So PDF's can no longer be set to open in Adobe, but it now requires clicking before the document opens in Adobe. No setting whatsoever can change this. Is this a permanent setting? Will have to move to another browser now. What a hassle. Got to move bookmarks, set up home pages etc. Ugh. Bey Firefox....

Open 6 2 20

Firefox crashed. Google email account deleted. Need to restore to a previous session

Firefox on desktop crashed. When it crashed, it deleted the Google email account I use to login for many sites. When I tried to retrieve that account, Google responded … (read more)

Firefox on desktop crashed. When it crashed, it deleted the Google email account I use to login for many sites. When I tried to retrieve that account, Google responded that it is deleted and the name cannot be reused.

Is there any way to resurrect a session from, say, 5 hours ago.

Open 2 3 20

Versions >152.0.6 crashes after running for a minute or so.

Running Windows 10 (have extended security updates). Starting at version 153.0 Firefox hangs (spinning cursor) until Windows realizes it is not responding and lets me sto… (read more)

Running Windows 10 (have extended security updates). Starting at version 153.0 Firefox hangs (spinning cursor) until Windows realizes it is not responding and lets me stop the program. Seems to be independent of the website (even happened on a Mozilla page). Have tried a couple of 153.xx updates and also 154 but behaves the same. On a Dell Inspiron 7570:

Processor Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz 1.99 GHz Installed RAM 8.00 GB (7.84 GB usable) Storage 932 GB HDD ST1000LX015-1U7172 Graphics Card NVIDIA GeForce 940MX (4 GB), Intel(R) UHD Graphics 620 (128 MB) Device ID 8036C0FE-3179-4D8D-8C72-672ED25B0ABA Product ID 00325-96206-88905-AAOEM System Type 64-bit operating system, x64-based processor Pen and touch Pen and touch support with 10 touch points

Open 12 1 20