/usr/share/xul-ext/adblock-plus-element-hiding-helper/chrome/locale/en-GB/composer.dtd is in xul-ext-adblock-plus-element-hiding-helper 1.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | <!ENTITY preview.label "Preview">
<!ENTITY accept.label "Add filter rule">
<!ENTITY attributes.lastchild.label "Last child">
<!ENTITY expression.label "Filter rule">
<!ENTITY domain.label "Bind to domain">
<!ENTITY nodes-tree.id.label "id">
<!ENTITY groupDisabled.warning "The filter group "?1?" that this filter will be added to is currently disabled.
You can still add the filter but it will not be applied unless you enable the filter group
in Adblock Plus preferences.">
<!ENTITY nodes-tree.class.label "class">
<!ENTITY advanced.label "Advanced view">
<!ENTITY attributes.tagname.label "Tag name:">
<!ENTITY domain.none.label "Any domain (not recommended)">
<!ENTITY dialog.title "Compose element hiding rule">
<!ENTITY basic.label "Basic view">
<!ENTITY attributes.label "Require attributes">
<!ENTITY attributes.firstchild.label "First child">
<!ENTITY attributes.custom.label "Custom CSS:">
<!ENTITY nodes-tree.node.label "Node">
|