Menu Bar slow drop down Linux Mint Mate FF93(solved)

[Grumpus]

With the menu bar displayed, when clicking on any item; File, Edit, View, etc. (using default system theme)
Click on the item and it pauses for a few milliseconds more than in the past with same settings.
Normally this would be instantaneous.
Tried search for any similar issue but most are site related, there's no delay on site opening, only the displayed menu items.

Solution: something borked Firefox on my Mint 9.4 system and ruined the sound set-up.
Just a guess but it may have been from a corrupted YouTube sound file.
None of the HDA Intel PCH fixes worked and when attempting a new profile the system stalled crashed.
It may also have been and interference from 185.125.190.18 or 185.125.190.17.
Although shown as Canonical the IPs had been listed in The Register as possibly being part of some system exploit.

[Grumpus]

Apparently not solved, the best I've been able to do is shorten the time a little but not much.
New install, new profile, safe mode, theme change and system testing, there does not appear to be anything which is apparent.
Clearing cache has no effect. Tried changing some settings in about:config mouse related no effect.

Any ideas?

[therube]

Is this a changed behavior (since 92)?

(SeaMonkey) has; ui.key.menuAccessKey & ui.submenuDelay.

So... about:config 'menu' or 'delay' & see if messing with something there helps.

[Grumpus]

ui.key.menu.AccessKey set to numerical value seems unaffected by changes. Will try off-line for opening and closing of Firefox.
ui.submenuDelay doesn't exist and don't know if adding and playing with values would help.
Pretty much gleaned about:config but as it's shown in the past there was sometimes and oblique item with no textual relationship to the issue.
Also the system it self does not have these menu slow downs and newer OS like Linux Mint 20.2 don't have the same issue.

Not very good at userChrome and have been wondering if that is part of the issue. Not all of the script is active.
Maybe someone will see something besides the old code and debris.

Code: Select all

 /* TABS: on bottom - 89+ */

*|*:root {
 --tab-toolbar-navbar-overlap: 0px !important;

 --tab-min-height:      28px !important; /* adjust to suit your needs */
 --tab-min-width:       80px !important; /* adjust to suit your needs */

 --menubar-height: 34px;
 --bookmarkbar-height: 32px;
 --tabbar-top: calc(var(--menubar-height) + var(--bookmarkbar-height) + var(--tab-min-height) + 9px); /*89+*/
}

#navigator-toolbox toolbar:not(#nav-bar):not(#toolbar-menubar) {-moz-box-ordinal-group:10}
#TabsToolbar {-moz-box-ordinal-group:1000!important}

#TabsToolbar {
display: block !important;
position: absolute !important;
top: var(--tabbar-top) !important;
width: 100vw !important;
}

#tabbrowser-tabs {
width: 100vw !important;
}

/* navigator-toolbox - padding */
*|*:root:not([chromehidden*="toolbar"]) #navigator-toolbox {
  padding-bottom: calc(var(--tab-min-height) + 1px) !important; /*adjust*/
}

/* TABS: height */
#tabbrowser-tabs,
#tabbrowser-tabs .tabbrowser-tab {
  min-height: var(--tab-min-height) !important;
  max-height: var(--tab-min-height) !important;
}

#TabsToolbar {
  height: var(--tab-min-height) !important;
  margin-bottom: 1px !important;
  box-shadow: ThreeDShadow 0 -1px inset, -moz-dialog 0 1px !important; /* omit */
  background-color: var(--toolbar-bgcolor) !important;
  color: var(--toolbar-color) !important;
}

/* drag space */
.titlebar-spacer[type="pre-tabs"],
.titlebar-spacer[type="post-tabs"] {
  width: 40px;
}

/* Override vertical shifts when moving a tab */
#navigator-toolbox[movingtab] > #titlebar > #TabsToolbar {
  padding-bottom: unset !important;
}
#navigator-toolbox[movingtab] #tabbrowser-tabs {
  padding-bottom: unset !important;
  margin-bottom: unset !important;
}
#navigator-toolbox[movingtab] > #nav-bar {
  margin-top: unset !important;
}

/* hide indicators and caption buttons */
#TabsToolbar .private-browsing-indicator   {display: none !important;}
#TabsToolbar .accessibility-indicator      {display: none !important;}
#TabsToolbar .titlebar-buttonbox-container {display: none !important;}

[Grumpus]

Solution: wiped Linux Mint Mate 9.3 off drive, formatted disc.
Installed new OS.