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How completely disable firefox activity in background?

Firefox consumes a lot of processor time in background. How to disable it? Following options do nothing: Use recommended performance settings - dasabled Use hardware ac… (read more)

Firefox consumes a lot of processor time in background. How to disable it?

Following options do nothing: Use recommended performance settings - dasabled Use hardware acceleration when available - disabled browser.tabs.remote.autostart = false

Asked by Andrey Sherstobitov 5 months ago

Last reply by Terry 4 months ago

sync bookmark not working, import bookmark not working after install firefox in linux lite 6.6

I recently installed Firefox version 120.0.1 on Linux Lite 6.6 and logged in to my Mozilla and Firefox accounts, then synced my data. In the past, when I used Ubuntu Desk… (read more)

I recently installed Firefox version 120.0.1 on Linux Lite 6.6 and logged in to my Mozilla and Firefox accounts, then synced my data. In the past, when I used Ubuntu Desktop 22.04, this method would display all the bookmarks I had saved on other devices that also use Firefox. However, for this case, syncing did not successfully display bookmarks in the Firefox toolbar.

I then tried exporting bookmarks to an HTML file, then importing them into the newly installed Firefox using the Bookmarks Manager, but the window for selecting the HTML file did not open, so I couldn't import bookmarks.html into the new Firefox installed on Linux Lite 6.6. I also tried restoring from the Bookmarks Manager, but the window for selecting the HTML file did not open either.

Is there another way to transfer these bookmarks to the newly installed Firefox on Linux Lite?

Asked by Hidayat 5 months ago

Last reply by jonzn4SUSE 5 months ago

Fcitx input method doesn't work

The fcitx input method works everywhere on my computer except Firefox. I've added the following to my etc/environment file, which is the main suggestion I found online: G… (read more)

The fcitx input method works everywhere on my computer except Firefox. I've added the following to my etc/environment file, which is the main suggestion I found online: GTK_IM_MODULE=fcitx QT_IM_MODULE=fcitx XMODIFIERS=@im=fcitx But it still doesn't work. My operating system is KDE neon 5.27.

Asked by Ruskin 5 months ago

Last reply by zeroknight 5 months ago

How to enable closing tabs in order of appearance to avoid jumping around

Today when I close many tabs using control w firefox seems to randomly jump around when choosing which next tab to close I wish to have firefox always close the adjac… (read more)

Today when I close many tabs using control w firefox seems to randomly jump around when choosing which next tab to close

I wish to have firefox always close the adjacent tab to the tab I just closed

This should be the default behavior ... I do not see any setting for this ... is there an addon to do this ?

I am using the latest firefox on ubuntu

      • UPDATE*** below answer for setting `browser.tabs.selectOwnerOnClose` has no impact on this

Asked by EventHorizon 5 months ago

Last reply by James 5 months ago

userChrome to show "Close Tab" in File menu stopped working

Hi, I've been using the following in userChrome.css for many years menu_close { display: -moz-box !important; } to restore "Close Tab" in the File menu, based … (read more)

Hi,

I've been using the following in userChrome.css for many years

  1. menu_close { display: -moz-box !important; }

to restore "Close Tab" in the File menu, based on cor-el's response regarding restoring menu_bookmarkAllTabs here:

https://support.mozilla.org/en-US/questions/799856

This stopped working some time ago and I am finally getting around to asking why.

I do have toolkit.legacyUserProfileCustomizations.stylesheets set to true, and other items in userChrome.css are working.

I am using 121.0 at home and 115.0 ESR at work and see the same (i.e. no "Close Tab"), in both cases on Debian testing. I do see this menu item when using the keyboard to open the File menu.

Any idea why this no longer works?

thank you, Greg

Asked by greg.klanderman 5 months ago

Last reply by Terry 5 months ago

Recommendations for compiling firefox

Dear friends at mozilla.org, Thank you for your excellent browser, which I've used almost from its first versions. I'd like to compile its source code, which I've downl… (read more)

Dear friends at mozilla.org,

Thank you for your excellent browser, which I've used almost from its first versions.

I'd like to compile its source code, which I've downloaded from your website, into a working browser. I've spent several days, and get only as far as not-terribly-helpful error messages, that indicate strongly that I'm using versions of tools and libraries that the source code doesn't like.

I'm using

 linux kernel 6.1.0-13-686-pae (from Debian)
 gcc 13.2.0-9
 perl 5.36.0
 python 3.11.7

It's sufficiently important for me to compile firefox that I'd install a fresh linux system for this purpose. Could you possibly recommend to me what linux distribution I could install, and versions of compilation tools, header files, libraries, etc. that are known to work for compiling firefox? I'd be glad to report back to you my results, to help others who'd like to compile firefox.

In case you're wondering, I'm perfectly competent in installing software, including compiling anything. I'm an M.I.T. graduate, and have been a professional computer programmer for most of the half-century of my working life.

Thank you kindly for any response that you have time to send to me.

Very truly yours,

Lyman Opie [email address]

Asked by jf02ut 5 months ago

Last reply by Paul 5 months ago

Getting a Unicode glyph to show correctly - specifically U+2A75

I am working on a website that uses Unicode extensively. Some glyphs do not show correctly. In particular U+2A75, which is double equals. I am using Ubuntu, and I have i… (read more)

I am working on a website that uses Unicode extensively. Some glyphs do not show correctly. In particular U+2A75, which is double equals. I am using Ubuntu, and I have installed Unifont. In the image, I have opened Firefox on the right and Chromium on the left, the URL is https://www.compart.com/en/unicode/U+2A75 Chromium is displaying the page correctly, Firefox is not. However, in both cases, the character is correctly displayed in the text in the Tab header after the favicon. browser.display.use_document_fonts is set to 1 I have read the Support page on editing fonts. Inspecting the element as suggested in the 'Editing Fonts' page, (see 2nd image uploaded), I see - in the source pane on the left, the character is correctly displayed (as in the tab text) - the Font being used to display the character in the rendered HTML is 'Source Sans Pro', which probably does not have the glyph for U+2A75. - the Font supplied by the website (presumably it does have the glyph) is list as a font, but I can't find a way to have it display the element.

I have tried to change the font family for the selected element in the Rules pane, but that does not work.

I have tried a variety of other changes in about:config but nothing seems to work.

I have two thoughts - the Font family for some Unicode ranges may be set for security reasons, and so U+2A75 is forced to some other Font - the fallback mechanism is not working to select a font when the glyph is not in the first family.

Asked by Richard Hainsworth 5 months ago

Last reply by zeroknight 5 months ago

Can't open or download files properly anymore

I accidentally used wrong disk when downloading a big file. So my primary disk, where I'm running OS became 100% full. Then I removed this big file, checked that disk is … (read more)

I accidentally used wrong disk when downloading a big file. So my primary disk, where I'm running OS became 100% full. Then I removed this big file, checked that disk is not full anymore, and tried to download again, this time choosing the right disk, but now the Firefox internal file browser, where we open files, and select folder to download is broken, pointing wrong location when selecting disk/folders. I tried restarting OS, reinstalling firefox, but it's internal file browser is still broken. In Chrome it's ok, in system file explorer is ok, problem occur only with Firefox. I'm using Pop!_OS 22.04.

Is there a way I can reset this internal file browser to work properly again?

Asked by Epilogue 5 months ago

Last reply by zeroknight 5 months ago

Lost entire profile!

I'm using 121.0 for Manjaro Today, I had a problem trying to re-load a website I had saved just the other day. I have a bunch of such websites for a technical project I … (read more)

I'm using 121.0 for Manjaro

Today, I had a problem trying to re-load a website I had saved just the other day. I have a bunch of such websites for a technical project I am working on.

I tried loading the other saved web-sites. All had been saved as a complete file and by this browser. I have no other browser installed.

The problem was that the saved web-page kept re-loading. No forum-discussion could be found so the trouble-shooting option was entered into.

I opened Firefox in safe-mode (via the command-line call). Running a suggestion; clearing cache didn't resolve the problem (in safe-mode the saved web-page still kept re-loading with a rapid cycle)

The next "suggestion" I tried was refresh Firefox. Firefox advised that none of my saved data and settings would be lost. Well, my entire profile is gone!!! Thankfully synchronizing worked such that I could recover passwords, history etc. What are NOT recovered are the settings for websites, probably other infos too.

I have two login-accounts on my system and I have a shared, common profile for both. This was using a public folder with access rights only for those two users.

I have been using that profile architecture for months. This is now gone!! Those folders do not exist anymore. In its place are entirely new folders, their formats completely unfamiliar to me. I am recalling my latest backup but will it be of any use???

Many thanks, indeed.

Asked by PthDE 5 months ago

Last reply by cor-el 5 months ago

Problem downloading anything in Firefox (Linux Mint 21 - System Package/Flatpak)

Hello everyone. Well, I've been using Firefox for a few months, maybe a semester now, I don't remember. But the point is that since yesterday I have been facing a seriou… (read more)

Hello everyone. Well, I've been using Firefox for a few months, maybe a semester now, I don't remember. But the point is that since yesterday I have been facing a serious problem of not being able to download any type of file (MP4, PDF, .JSON, ISO, etc.). I've already used the troubleshooting mode and I've also restarted my laptop, but it didn't help. I've also gone to the advanced settings (see 'about:config > browser.download') and reset/deleted the data for each command but the problem still persists.

What happens is the following: I click to download the file in question, however, nothing happens other than the page loading that commonly occurs when downloading something. Still, the file does not appear in the downloads tab and there is not even the option to choose where to save the file (e.g. Downloads folder, Documents folder). The download simply appears to have failed.

Exactly, it 'appears', because today I discovered that all my downloads were being directed without my permission/action to the 'downloads' folder (And that's not where I want them to go). The problem would be smaller if only this happened, as I would then just get the files downloaded there and then change to the desired folder, thus trying to move forward despite the problem. But the downloaded files themselves are not operational, they have the icon when a file is still downloading, in addition to not having a name, everything being just a cluster of codes.

In the end, there are files, large and small, that have no use and that I don't even have control over where to direct them. Which is still a huge problem because I still technically can't download anything from the browser. Please, I really need your help on how to resolve this problem.

Note: Also, when I close and open the browser, the first download I try appears in the downloads tab, but it fails instantly and cannot be resumed, making it an eternal failure.

Asked by Tragoudo 5 months ago

Last reply by jonzn4SUSE 5 months ago

Unable to play live videos/streams on ubuntu

Over the past few weeks I've been unable to watch live videos on Firefox on Ubuntu 22.04. I thought it was just an issue with Twitch but I realized the problem also persi… (read more)

Over the past few weeks I've been unable to watch live videos on Firefox on Ubuntu 22.04. I thought it was just an issue with Twitch but I realized the problem also persists on live videos on Youtube and did some troubleshooting which didn't solve the issue. The only solution I was able to find for Ubuntu said to install ffmpeg, which I already had, but I made sure it was upgraded, refreshed Firefox, and still have the issue. Currently I'm on Firefox 121.0 but I've had this issue since before I updated it. I dual boot Ubuntu and Windows and am not having this issue when I boot Windows on the same computer and Firefox profile.

Asked by libbycjones 5 months ago

Last reply by zeroknight 5 months ago

Japanese Input not appearing

Since about one year I am unable to use Japanese input only in Firefox. When I try to switch with fcitx and control+space, nothing happens. However, fcitx-mocz works ever… (read more)

Since about one year I am unable to use Japanese input only in Firefox. When I try to switch with fcitx and control+space, nothing happens. However, fcitx-mocz works everywhere else on my computer (i.e. terminal, thunderbird, other browsers, etc.). Furthermore, I uninstalled fcitx and everything associated with it and reinstalled it according to this thread: https://support.mozilla.org/en-US/questions/1367181 (just with mocz for Japanese). This also didn't change anything. Any help is appreciated! My system: Operating System: Linux Mint 20.3 Kernel: Linux 5.15.0-91-generic Architecture: x86-64 fcitx version: 4.2.9.7 Mozilla Firefox 121.0

Asked by Paracelsus 5 months ago

Last reply by zeroknight 1 month ago

Firefox is spawning a million dialog boxes when I try to download a PDF

I have had a really consistent experience on Firefox for Ubuntu (120.0 (64-bit)): I open a google doc and choose "Download > PDF" Google Docs pops the PDF open … (read more)

I have had a really consistent experience on Firefox for Ubuntu (120.0 (64-bit)):

  • I open a google doc and choose "Download > PDF"
  • Google Docs pops the PDF open in a new tab. The location is my own file system, eg. `file:///home/amanda/Downloads/whatever.docx.pdf`
  • I use ctrl-s to save the PDF to a more suitable folder
  • Firefox starts spawning dialog boxes. The black border around the dialog box just grows for a while. I can't even tell if clicking "cancel" is actually doing anything because maybe it is closing the dialog and revealing the one below.
  • The only solution is to quit Firefox entirely.

It seems to also happen if I print from Google Docs or just use the finder to open a PDF directly in Firefox: using ctrl-s to save starts it spawning infinite "Save" dialogs.

Obviously, I can avoid this by using the OS file manager to move the PDF to a more suitable location but it would be really nice to not have to keep track of that.

Asked by amanda 5 months ago

Last reply by jscher2000 - Support Volunteer 5 months ago

Firefox crashes whenever downloading or uploading is tried

Firefox browser crashes whenever uploading or downloading is tried. It seems website independent, and even a trial to start download from an email crashes the browser. Re… (read more)

Firefox browser crashes whenever uploading or downloading is tried. It seems website independent, and even a trial to start download from an email crashes the browser. Report IDs for some of the submitted crash reports:

bp-14ac8a97-77af-46c6-a59b-4f5c30231220 bp-b73b7d46-fbb3-48b7-8298-358db0231220 bp-fe6b5110-282a-428f-b539-a61780231220 bp-c43a750b-6802-4869-9461-c8e9f0231220 bp-2f901767-5dc1-4858-b182-7583f0231220 bp-d6310f4d-ec03-40c7-bae4-0df550231220 bp-e4816ab9-cc8c-4f63-ad87-26f2d0231220 bp-8abda867-a0ee-48fe-9d1e-9d64b0231220 bp-827ddfcf-4352-4f2c-82c4-7e01c0231220 bp-2c16b203-21ca-42e2-b91c-96bbd0231220 bp-e54bcd31-2532-44a8-845c-5a4120231220 bp-15e37b7e-749a-45f5-a9e0-a7c810231220 bp-7204c927-ec96-4318-a298-c7b1f0231220

Asked by ymaan 5 months ago

Last reply by jonzn4SUSE 5 months ago

When I click the address bar, Firefox lists favorite sites. How do I disable this list until after I've typed?

When I click the address bar, Firefox lists favorite sites. How do I disable this list until after I've typed? I don't want the list because I don't want to be distract… (read more)

When I click the address bar, Firefox lists favorite sites. How do I disable this list until after I've typed?

I don't want the list because I don't want to be distracted by these sites.

While they are safe-for-work, I'd rather "fun" sites didn't come up when I'm working with other people.

Asked by firefox549 5 months ago

Last reply by zeroknight 5 months ago

FLAW | BREACH | BUG - Setting privacy.resistFingerprinting to TRUE changes Resolution from 1920x1080x24 to 1920x968x24

Im trying to halt fingerprint tracking, whoever designed Firefox's privacy.resistFingerprinting rule makes fingerprinting even more prevalent. With privacy.resistFingerp… (read more)

Im trying to halt fingerprint tracking, whoever designed Firefox's privacy.resistFingerprinting rule makes fingerprinting even more prevalent.

With privacy.resistFingerprinting set to FALSE, my resolution is reported : 1920x1080x24, set to TRUE its 1920x968x24

1 in 6 browsers has resolution 1920x1080x24 1 in 6000 browsers has resolution 1920x968x24

Who in Firefox decided this config rule? and what is the logic behind it? Looks like intentional sabotage to make peoples browsers more trackable.

Whilst leaving resistFingerprinting set to TRUE, How can I force my resolution to the more generic 1920x1080x24?

Is there another setting in about:config I can change? if there isnt, where can I request this feature? Id rather not resort to an extention for something so small like this.

Asked by Lee 5 months ago

Last reply by zeroknight 5 months ago