I tried the firebug 1.2 xpi from upstream and it seems to fix it (firefox doesn't crash at startup anymore and firebug seems to work again too).
Then I wanted to try the Ubuntu package for it but it FTBFS in a pbuilder:
[...]
zipIntoXPI:
[mkdir] Created dir: /tmp/buildd/firebug-1.2~b20+svn561/dist
BUILD FAILED
/tmp/buildd/firebug-1.2~b20+svn561/build.xml:227: Warning: Could not find file /tmp/buildd/firebug-1.2~b20+svn561/deploy-chrome.manifest to copy.
Total time: 1 second
make: *** [build/firebug] Error 1
dpkg-buildpackage: failure: debian/rules build gave error exit status 2
pbuilder: Failed autobuilding of package
I tried the firebug 1.2 xpi from upstream and it seems to fix it (firefox doesn't crash at startup anymore and firebug seems to work again too).
Then I wanted to try the Ubuntu package for it but it FTBFS in a pbuilder:
[...] firebug- 1.2~b20+ svn561/ dist
zipIntoXPI:
[mkdir] Created dir: /tmp/buildd/
BUILD FAILED firebug- 1.2~b20+ svn561/ build.xml: 227: Warning: Could not find file /tmp/buildd/ firebug- 1.2~b20+ svn561/ deploy- chrome. manifest to copy.
/tmp/buildd/
Total time: 1 second
make: *** [build/firebug] Error 1
dpkg-buildpackage: failure: debian/rules build gave error exit status 2
pbuilder: Failed autobuilding of package