Firefox Support Forum

For the past few months every restart of Firefox disables LastPass. I did NOT have this problem previously. The version of LastPass is current (no updates found). I can go to Add-ons and the toggle is set to "on" but the icon in the menu bar is black. If I click the toggle off, then back on, LastPass comes on just fine. Why is Firefox disabling something that Add-ons says is loaded? VERY strange. Does NOT happen in Chrome. Thanks for any assistance. PITB!!!

I installed one of the ad blockers, I can't remember which one. It's given me so much trouble that I thought to disable or delete it. I deleted the little icon ( a stop sign) that shows up on the far right of one of the menu bars (don't know the name of that bar but here it's the second one down). But websites still complain that I have an ad blocker. I've gone to 'add-ons and themes' but I can't find it. BTW, what's the difference between an add-on, a plug-in and an extension? Which one of those are ad blockers? How can I see and then delete whichever blocker I still have? Without the icon I can't even disable it for individual sites.

Saved themes in Firefox color not visible in add-ons manager. Does not fix itself in safe mode. One of the saved themes is a default preset I liked, the other is a preset I made myself, using all options except advanced colors.

On my old iMac, Firefox remembered sites I had visited and filled them in, like if I typed A it would autofill Amazon. This is not happening on my new 2023 iMac and I can't figure out how to turn this on. Also, I could see my site visit history on my old iMac, but this field is blank, with no history of sites visited shown, on my new machine. Help is appreciated. Please keep in mind that I am technically retarded and need step by step guidence. Thank you in advance for your help

Hi. Is there a way to customize the order of Firefox headers and footers on printed pages (including print-to-pdf)?

I prefer the header to be url only, in the center. While the footer has page on left; title in the center, and date on the right.

This used to be easy to accomplish with print options in older versions, then -- as the print dialog changed (and actually improved a lot in most *other* ways) I had to turn to about:config modifications like those described in the 1/27/21 reply here: https://support.mozilla.org/en-US/questions/1323433. But now I can't seem to find any way to have any control over print headers besides "on" and "off."

One problem I find with having both page title and url on top is that these can be long, causing one or both to be truncated.

I'm using Firefox 115.3esr.

When I go into fullscreen on firefox macos, hovering near the top shows the traffic lights (fullscreen, minimize, close window buttons) and moves everything down. This may be expected behavior, but it is very annoying as when you try to open new tabs the tab bar moves out of the way of the traffic lights, and the traffic lights area is around the size of the tab bar. Is there any way to make the traffic lights always visible or keep them from moving?

Hello. Since a few years I was using 2 FF instances. Profile1 (default) triggered by "C:\Program Files\Mozilla Firefox\firefox.exe" Profile2 triggered by "C:\Program Files\Mozilla Firefox\firefox1.exe" -P Mike -no-remote -no-deelevate I could start profile 2, than profile 1 and corresponding icons on Windows 7 taskbar were lit.

Out of the blue today when I start profile2 shortcut icon from profile1 is lit and I can't start profile 1. When I start Profile1 I can run also Profile2 and corresponding icons on taskbar are lit.

There were no hardware nor software changes on that PC. How to get back possibility to run 2 instances of FF? Mike

Please, how can I disable the tab title on hover? After they appear, they stay on the screen even if I switch windows and are extremely annoying. (Work on fedora, gnome)

Hello. I recently moved from windows to Linux Mint, and noticed the behavior of the Picture in Picture window is different when resizing. On windows, the aspect ratio is kept. while on Linux, it is free form, making these black bars around the video, so I have to resize it very carefully to not show any black bars.

How can I make the PiP on Linux behave like on Windows? That means resizing keeping the aspect ratio.

Attached are the comparisons between Windows and Linux Mint.

Thank you very much!

I have Windows 11 with high contrast mode enabled and I have tried all the settings, to check in registry, in the theme file itself (.theme) and in the settings of Fiferox. Could you please suggest what else can be done?

Just to preface I have already tried looking for a similar issue in support and most of the answers are like "just make sure to not be in private browsing" but I am sure that I am not and my extensions are all allowed in private browsing anyways. I also know this is not a theme issue as after I removed ublock origin and re-added it to firefox the extension icon showed up in the menu just like usual, but I do not want to do this for every single extension as I have a large amount and I am worried about personal settings that I have saved being undone. In the past I have used this same firefox setup without any of these issues whatsoever and without changing any settings since then.

The main issue is that when I click the extensions menu toolbar icon (the puzzle piece) it only takes me to about:addons. On this page I can confirm all my extensions are there, and I know that they are working, due to things like ads still being blocked from ublock origin or tracking links being blocked from clearURLs. However there is no icon for them after clicking/right clicking the the extensions puzzle piece, or when using the "customize toolbar" feature, or in the overflow menu, or in any other possible place. I have also tried telling the toolbar to reset to default and this does not help. Since the puzzle piece icon never shows me a menu, there is no way to right-click an extension and get the menu option to "pin to toolbar" as this option can't be found in the about:addons page as far as I have found.

Is there any way to fix this beyond just re-adding every single one of my extensions?

Firefox Bookmarks or Thunderbird messages folders : I'm trying to find out which folder I stored this bookmark or message in. I do a search and if I'm lucky I find a list of possible items. But the LOCATION option refers to something different from ' in which folder it can be found'. Is there a way to find this ? To find the LOCATION WITHIN THE APP ---- - WHAT FOLDER IS IT STORED IN

I am a backend developer (API maintainer) and I use firefox as my primarily browser at work. A feature that I would find very useful would be that firefox prettifies the "Form Data" under the "Request" tab when a request is selected under the "Network" tab in the developer tools, and with prettify I mean to display in multiple lines and highlighted properly (for a comparison example you can take the "Postman" application feature under the "raw" tab).

As of now it only displays the form data in a single horizontally scrollable line and it also has a "Raw" toggle.

Thank you and keep up the good work.

I'm using a video as the background for my website, and Firefox's built-in PIP (Picture-in-Picture) icon for videos is displaying. I don't want it to be visible on my website. I tried using FFmpeg, but it did not work as it was mentioned by some people on Stack Overflow. I read that Firefox won't display this icon for videos in an iframe, but I don't want to use an iframe on my website. Is there any other solution?

My problems started after the upgrade to 113 when Firefox would no longer load at all. I tried deleting and reinstalling, but nothing changed until I moved the profile (yeah profile mgr didn't work either). I finally got it to reinstall and ran sync but had to also reinstall my extensions/addons. The extensions appear to be working, but the are not displaying in either the toolbar area or in customizations.

I have tried searching all over and different solutions but thus far nothing has worked. That includes right clicking on the extension and selecting to add it to the toolbar.

I repeat, the extensions appear to be working though I cannot call some of them up (EverNote for example), and I need Lastpass on the toolbar for password generation and to access the vault.

Extensions ARE displaying in Chrome browser.eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Attached is image of customization scree that also shows toolbar area. No addons anywhere.

I have tried syncing to the time server and manually updating the time with no success. It is only happening on this computer. My other laptop and my Android are fine, so it has something to do with something on this PC. I've tried to disable vpns but that hasn't helped. Any insight is greatly appreciated since the timestamp is crucial for much of what I do!

Hi, i am on linux an Firefox 115.0.2. Every supported website appeared in dark mode because of my preferences in the firefox settings respectively about:config layout.css.prefers-color-scheme.content-override is set to 2 and my system mode is dark. (0 and 3 changes nothing) Since some time this settings does not work anymore. The only thing i have changed is: about:config - privacy.trackingprotection.enabled set to true So now all the websites appeared in dark mode now appear in light mode. Chrome shows all these websites in dark mode. (But of course thats no option :-)) An Example: reddit.com: before: dark, now: light mode, Chrome dark mode. So please help! regards, awilli