Firefox 技術支援討論區

For years I have been using Firefox. If I clicked on a hyperlink in any of my programs, Outlook messages, websites etc, Firefox opened a new tab. That behaviour has suddenly stopped for websites including this one occasionally. It seems to still work for Outlook. Has Firefox changed its policy?

The advice on https://support.mozilla.org/en-US/questions/1283295 is to edit browser.link.open_newwindow (3) 1:current tab; 2:new window; 3:new tab; But that is already set to 3.

What other settings might work? And why has this been changed?

Hi, I'd like to disable that annoying animation when going to fullscreen (by hitting F11). Supposedly, setting the following should work:

Go to about:config

Set: full-screen-api.transition-duration.enter 0 0 full-screen-api.transition-duration.leave 0 0 full-screen-api.transition.timeout 0 full-screen-api.warning.delay 0 full-screen-api.warning.timeout 0

Restart

However, this does not have any effect in Firefox 94.0 on Ubuntu. Is this a bug/regression? Or is there some other way to disable the animation?

Hi, how do we set Firefox 97 to use the os/system print dialog?

Before Firefox 97 we could change these settings in about:config:

print.tab_modal.enabled = false widget.use-xdg-desktop-portal = true

But they are both gone now.

There is now widget.use-xdg-desktop-portal.print, which is an integer (2 by default).

But no matter what integer it is set to, we still don't get the os/system print dialog.

We are using Arch Linux, but we don't expect that to be of any importance -- after all, it worked before Firefox 97.

Thanks for your time :o)

I just updated from Firefox 96.0.3 to Firefox 97. When I try to print I get the Firefox preview, even though I have print.tab_modal.enabled set to false. Please fix it so that I can get the print system dialog without going via the Firefox preview. Note that I have now reverted to Firefox 96.0.3 and won't update from this unless the problem is fixed.

Firefox 97 installed itself , and now I have two print dialogs each time I go to print something. I have the system print dialog , and the Firefox print dialog. Does anyone one know a way to turn of the Firefox dialog in 97?

I fixed it in earlier versions by setting

print.tab_modal.enabled = false

...but in Firefox 97 it seems this no longer does the job.

Grateful for any advice.

I have always had the Print UI disabled by setting print.tab_modal.enabled to FALSE. Since the Version 97 update today, this is not working. The FALSE setting is still there under about:config but the Print UI dialogue now keeps coming up.

Prior to FF97 a simply setting to "false" the about:config, print.tab_modal.enabled setting allowed FF to always use the system dialog box when printing. However, in FF97, this is no longer the case. How can I set FF97 to always use the system print dialog box??

I almost always use Preview printing on my Macs to avoid multiple pages of garbage so this is fairly important to me...and it might help to save a few trees...

How can I restore my old system print dialog window as my default, instead of getting the horrible new print window that now appears? I have already set both the print.tab_modal.enabled preference and the app.normandy.startupRolloutPrefs.print.tab_modal.enabled preference to FALSE. This did NOT solve the problem! I knew updating Firefox to version 97 would be a huge mistake, and of course it was. I'm so irritated...

I'm using Windows 10 Professional. Any help greatly appreciated.

Firefox automatically updated last night, and once again defaults to its own printer dialog box. I hate it. There is a link to use the system print dialog box but it only works for that specific print job -- which wastes a lot of time every time I want to print.

I can't find a setting to choose my system printer dialog box as default. the solutions from last year no longer work (about:config, then tab_mo, then print.tab_modal.enabled, set to false.

Anyone know how to fix this? It's enough to make me stop using the browser because the Firefox dialog box sucks.

In Settings/Applications, have "JNLP file" set to "Use Java(TM) Web Launcher (default)". This is used in Oracle's Agile to view documents. In previous versions of Firefox when selected, the file would open using Java to display the document from Agile. As of Firefox 97, now only "Save File" or "Cancel" options are offered. What happened that this functionality has been removed?

Hello!

I am multilingual and write in multiple different languages, and the red markings from spellcheck underneath non-English sentences get annoying when they are so frequent. I understand that I can install multiple dictionaries, but that does not allow me to use more than one language's spellcheck at a time.

Is it possible to activate 2+ language dictionaries in Firefox?

Thanks for the help, Sylvan

My current Theme is Dark Fox. But, previously my backgrounds and menus were all white and easy to read. Now for some reason they're black and difficult for me to deal with.

How do I reset to white and sync them on all my devices?

I was quite unhappy with the new Firefox Proton design, so I made a CSS file and copied the following code from a website. However, I don't know what to do to (1) slightly reduce the tab height, (2) get back tab borders for inactive tabs and (3) remove the small gaps between tabs. How exactly do I have to change the following code to do so (ideally, for convenience, please just complete the code accordingly)? Thanks in advance for any support!

/*** Tighten up drop-down/context/popup menu spacing (8 Sep 2021) ***/

menupopup:not(.in-menulist) > menuitem, 
menupopup:not(.in-menulist) > menu {
  padding-block: 2px !important; /* reduce to 3px, 2px, 1px or 0px as needed */ 
  min-height: unset !important; /* v92.0 - for padding below 4px */
}
:root {
  --arrowpanel-menuitem-padding: 4px 8px !important;
}

/*** Proton Tabs Tweaks ***/

/* Adjust tab corner shape, optionally remove space below tabs */

#tabbrowser-tabs {
    --user-tab-rounding: 6px;
}

.tab-background {
    border-radius: var(--user-tab-rounding) var(--user-tab-rounding) 0px 0px !important;
    margin-block: 1px 0 !important;
}
#scrollbutton-up, #scrollbutton-down { /* 6/10/2021 */
    border-top-width: 1px !important;
    border-bottom-width: 0 !important;
}
/* Container color bar visibility */
.tabbrowser-tab[usercontextid] > .tab-stack > .tab-background > .tab-context-line {
    margin: 0px max(calc(var(--user-tab-rounding) - 3px), 0px) !important;
}

With the new v85 of Firefox... for Microsoft Print to PDF...

the defaults for print headers & footers has changed and is no longer available to edit or even view. It seems as though my settings remain in place for other printing options like my physical printer but even there the options are not editable or viewable.

There used to be a "page setup" option but I have not be able to find this anywhere anymore.

• Bulleted list itemhttps://support.mozilla.org/en-US/kb/how-print-web-pages-firefox#w_changing-the-page-setup

I'm assuming that it has to do with the bug fix for pdf printing but doesn't seem that it should be an intended outcome of the fix.

• https://www.mozilla.org/en-US/firefox/85.0.1/releasenotes/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1689789

Any work arounds anyone knows about or has found?

Have changed about:config to set the print.tab_modal.enabled to false but it still uses the (extremely painful) Firefox Print Dialog What else do I need to change?

how can I restore to white, the black background on the Firefox Browser, even my menus have turned black. I have tried through my normal settings and although it states I have a white background. It doesn't

How to allow web page to override a keyboard shortcut. Currently firefox picks up the shortcut instead of the webpage...

For example I have an webpage that detects ctrl-shift-h which worked fine in version 56 but now in version 96 it brings up a "Show All History" dialog

I an doing many such things so I looking for a generic way to override firefox keyboard shortcuts

hi I want to finde all my addons for Videos on the Firefox addons page about:addons But how? Strg+F leads to : addons.mozilla.org Scrolling and searching for some not namely known addon is very uncomfortable in Firefox :( Opera Brwoser does it right :) Perhaps this could be optimzed in Firefox? thx

Not exactly sure when this started, but I recently updated to FF 97.0.1.

I previously made the about:config changes about a year ago when this happened. "Double-click the print.tab_modal.enabled preference to switch between the new experience (true) and the classic experience (false)".

But it's not working now. I even toggled back & forth (false - true - false) but to no avail.

How do I get the Print Preview option showing up in the drop down File menu like it used to be?