Browsers crush under Fedora

[Michael Stepanov <f.l.linux-admin@news.francoudi.com>]

Hi,

I still have problem with working of browser (or problem has me).
I've fixed fonts problem but all kind of browsers crush sometimes.

Mozilla:

Warning: Actions not found: addBookmark, viewBookmark, copy, 
undefined-key, find, findAgain, history, loadImages, openURL, mailNew, 
new, openFile, print, exit, reload, saveAs, paste, delete, cut, undo, 
historyItem, back, forward, abort, PageUp, PageDown
Warning: Actions not found: ManagerGadgetNextTabGroup, 
ManagerGadgetPrevTabGroup, DrawingAreaInput, addBookmark, viewBookmark, 
copy, undefined-key, find, findAgain, history, loadImages, openURL, 
mailNew, new, openFile, print, exit, reload, saveAs, paste, delete, cut, 
undo, historyItem, back, forward, abort, PageUp, PageDown
Warning: No action proc named "ManagerGadgetArm" is registered for 
widget "form"
Warning: No action proc named "ManagerGadgetArm" is registered for 
widget "form"

Killed                  /usr/lib/mozilla-1.6/mozilla-bin

Opera:
QClipboard: Unknown SelectionNotify event received
QClipboard: Unknown SelectionNotify event received
QClipboard: Unknown SelectionNotify event received
QClipboard: Unknown SelectionNotify event received
Killed

MozillaFireBird:

Killed        "$prog" ${1+"$@"}

My environment is a following:
Fedora Core 1, Mozilla 1.6, MozillaFireBird 0.7, Opera 7.23 Final

Any suggestions?

Thanks in advanced.

-- 
Best regards,
Michael Stepanov,
Perl/Linux Developer
Francoudi & Stephanou Ltd.