Firefox Community Forum

Firefox abruptly stopped working on my MacBook Air. When logged in as the admin, Firefox works fine. When a 2nd user logs into an account on the Mac, and tries to open Firefox, Firefox asks to install a helper tool. If I do so (with the admin credentials), the helper tool prompt goes away, but then if I click to open Firefox the icon just bounces and I get an "application not responding" warning.

I have tried refreshing Firefox from the admin account. I deleted Firefox and deleted all user profiles, re-installed Firefox, and still the same thing happens (works fine on admin account, does not work for any other user on the Mac). I am also unable to open Firefox in troubleshoot mode (option key). Even with the option key the Firefox icon bounces on the dock and never opens.

I can't share any data because I can't open the app.

Any help would be appreciated.

Thanks.

1950craigmillar

Nov 21, 2024, 02:40 CST

I love Firefox, but I can't find an answer to why the keyboard input lags 5-10 seconds. This is always noticeable in NYT Games like Wordle, but not Bluesky, for instance. I use Chrome now for NYT but eventually I'll go back to stay if I can't fix this, which is a shame as it's the best browser around. Thank you for your help.

1. navigator-toolbox>toolbar:not(#toolbar-menubar):not(#TabsToolbar):not(#nav-bar) {

   padding: 0px 4px 4px !important;
 }

  .tabbrowser-tab[fadein]:not([pinned]):not([style*="max-width"]){
   max-width: 300px !important;

}

1. tabbrowser-tabs {

 --tab-min-height: 36px !important;
 height: 36px !important;

}

#tabs-newtab-button {
   margin-left: 13px !important;
   margin-bottom: -1px !important;
 }
.tabbrowser-tab {
   margin: 0 -14px 0 -3px !important;
 }
 
 .tab-background{
   margin: 0 10px !important;
   background: #F0F2EA;
   background-clip: border-box;
   border: none !important; 
   -moz-transform: perspective(80px) rotateX(8deg) !important;
  -webkit-transform: perspective(80px) rotateX(8deg) !important;
   outline: none !important;
   border-top: 1px solid #7E7B7B !important;
   border-right: 1px solid #7E7B7B !important;
   border-left: 1px solid #7E7B7B !important;
   border-radius: 9px 9px 0 0 !important;
  margin-bottom:-1px !important;   

}

  .tabbrowser-tab:hover > .tab-stack > .tab-background:not([selected="true"]) {
   background-color: #D1D5C6 !important;
 }
 
 .tabbrowser-tab[selected="true"] .tab-background {
   background: #F0F2EA !important;
 }
 
 .tabbrowser-tab[selected="true"] .tab-text.tab-label {
   color: black !important;
 }
 
 .tab-line {
   display: none !important;
 }
 
 .tab-content {
   padding: 0 25px !important;
 }
 
  /* for backward compatibility */
 .tabs-newtab-button.toolbarbutton-1 {
   margin-left: -0px !important;
 }
 
 .titlebar-placeholder[type="pre-tabs"] {
   border-inline-end: initial !important;
 }
 
 #tabbrowser-tabs:not([movingtab])>.tabbrowser-tab[beforeselected-visible]::after,
 #tabbrowser-tabs[movingtab]>.tabbrowser-tab[visuallyselected]::before,
 .tabbrowser-tab[visuallyselected]::after {
   border-color: var(--tabs-border-color);
   margin-top: 0 !important;
   margin-bottom: 1px !important;
   opacity: 8 !important;
   border: none !important;
 }
 
 [tabsintitlebar]:root:not([extradragspace]) .tabbrowser-tab::after,
 .tabbrowser-tab:hover::after,
 #tabbrowser-tabs:not([movingtab])>.tabbrowser-tab[beforehovered]::after {
   border: none !important;
 }
 
 .tab-text.tab-label {
   text-shadow: initial !important;
   color: black !important;
   font-style: unset;
   text-decoration: none !important;
   -webkit-font-smoothing: antialiased !important;
   -moz-osx-font-smoothing: grayscale !important;
 }
 
 .tabbrowser-tab:hover .tab-text.tab-label {
   color: black !important;
   text-shadow: none !important;
   -moz-osx-font-smoothing: unset !important;
 }