Firefox Community Forum

I'd like to ask about Firefox's behavior and settings. I'm using Firefox with vertical tabs (using an add-on), but it seems to be behaving strangely. The things that have changed since before are: 1. Open from pinned tab 2. Now opens in a new tab → Previously it opened in the same tab 3. Clicking on a newly opened tab opens a new tab again → Previously it would open pinned tabs/same tabs → in a new tab It has changed. I haven't changed any of my Firefox settings. Windows 11 Home 23H2 Firefox version 139.0.4 (64-bit).

I installed the new 140 update, and now when I open the bookmark sidebar, the "Search bookmarks" field is highlighted, and the entire list of bookmarks is darkened to the point that it's pretty much unreadable. This was never the case before. I NEVER use the 'search bookmarks' function. My bookmarks are organized into folders and sorted alphabetically. How can I undo this setting so the sidebar looks like it used to?

Thanks!

Hello, Since the update on 24 June 2025, bookmarks are displayed in black text on a black background. Is this normal? If not, how can I resolve the issue? I had set it to dark mode, but even when I switched back to light mode, nothing changed. I would appreciate help from the community or Mozilla if anyone has a website address to contact them. Have a nice day.

hi for some reason twitch.tv or some other websites will no longer play videos on my pc and i have no idea why, firefox works fine on my laptop

Hii. Amazing browser tho, whenever i pin something on top or chuck it into essentials - when i close that tab - it disappears (and reappears on browser restart) - i could not locate any setting pertaining to essentials that would stop that behavior (ideally when i close the pinned/essential tab i would love it to stay there as a bookmark - anyone know of a way to achieve this?

I got a new PC and tried to import my Firefox bookmarks. But on the right side menu when you click bookmarks, it only show recent ones which actually aren't recent at all. How do you get that selection to show all of the bookmarks instead of recent?

Also I'm still getting a prompt underneath the address box to manage bookmarks and I can't get rid of it. How do I clear that out?

I have the box ticked in Settings for previous tabs to be installed on Startup but it isn't happening although it used to. I was trying to get rid of caches (what are they?) and must have done something.

I watch Rakuten Viki, and suddenly a recapcha box is popping up on the bottom right, blocking the full screen button.... so annoying,,,, how can i get rid of it/ THANKS

I can't log into my doctor. Their web support says to not use Firefox.

https://www.samaritanhealthcare.com/mychart/

I've been with Firefox for years. I don't want to change browsers.

Can you fix the communication problem between Firefox and MyChart?

Thanks for everything,

Jude

I just updated Firefox and the bookmarks on the left become all black. Black font on black background. Unreadable. Before that, the font was white.

How do I change that ?

Thanks !

Hello I have reinstalled my firefox on a new reinstall of windows 10 as my older version 10 crashed and went to the wall. however I have all my tabs and fafourites up and running but when i try and download my paid version of Nord VPN firefox comes back and says its not secure and wont load the website ? this has been working for me in the past. any advise would be greatfully accepted. thank you.

I believe there was a button to send a url link by email on Firefox. I tried to find that button everywhere, but I still can't find it and it didn't even get to an answer for this by asking questions on Mozilla website. Could you kindly guide me where to find that button?

Thank you in advance.

My Win10 & Win11 pc's updated to this version and they all have the same problem: The bookmarks have disappeared. Including my pinned bookmarks on FF's opening page.

I also just noticed that there are no "toolbar items".

FF ver 140. just loaded and now all my sidebar bookmark fonts are black on black. How do I change the sidebar bookmark font back to white? When I disabled all Themes the white color came back, but enabling any theme and they the font turns black again.

Did Not Connect: Potential Security Issue

Firefox detected a potential security threat and did not continue to nrega.nic.in because this website requires a secure connection.

What can you do about it?

nrega.nic.in has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site.

Probably nothing, since it’s likely there’s a problem with the site itself.

Hello,

Since update 140.0, the side panel is dark (no problem), but the text is black instead of white!!! Which makes reading black on dark is very complicated... Could you fix this problem with a new update? Thank you so much in advance.