--- a/toolkit/crashreporter/breakpad-client/linux/minidump_writer/linux_ptrace_dumper.cc
+++ b/toolkit/crashreporter/breakpad-client/linux/minidump_writer/linux_ptrace_dumper.cc
@@ -301,17 +301,17 @@ bool LinuxPtraceDumper::ThreadsSuspend()
         my_memmove(&threads_[i], &threads_[i + 1],
                    (threads_.size() - i - 1) * sizeof(threads_[i]));
       }
       threads_.resize(threads_.size() - 1);
       --i;
     }
   }
   threads_suspended_ = true;
-  return threads_.size() > 0;
+  return !threads_.empty();
 }
 
 bool LinuxPtraceDumper::ThreadsResume() {
   if (!threads_suspended_)
     return false;
   bool good = true;
   for (size_t i = 0; i < threads_.size(); ++i)
     good &= ResumeThread(threads_[i]);

--- a/toolkit/crashreporter/breakpad-client/linux/minidump_writer/minidump_writer.cc
+++ b/toolkit/crashreporter/breakpad-client/linux/minidump_writer/minidump_writer.cc
@@ -594,17 +594,17 @@ class MinidumpWriter {
     if (!minidump_writer_.WriteString(file_path, my_strlen(file_path), &ld))
       return false;
     mod->module_name_rva = ld.rva;
     return true;
   }
 
   bool WriteMemoryListStream(MDRawDirectory* dirent) {
     TypedMDRVA<uint32_t> list(&minidump_writer_);
-    if (memory_blocks_.size()) {
+    if (!memory_blocks_.empty()) {
       if (!list.AllocateObjectAndArray(memory_blocks_.size(),
                                        sizeof(MDMemoryDescriptor)))
         return false;
     } else {
       // Still create the memory list stream, although it will have zero
       // memory blocks.
       if (!list.Allocate())
         return false;

--- a/toolkit/crashreporter/client/crashreporter_linux.cpp
+++ b/toolkit/crashreporter/client/crashreporter_linux.cpp
@@ -538,17 +538,17 @@ bool UIShowCrashUI(const StringTable& fi
 
   gCloseButton =
     gtk_button_new_with_label(gStrings[ST_QUIT].c_str());
   gtk_box_pack_start(GTK_BOX(buttonBox), gCloseButton, FALSE, FALSE, 0);
   gtk_widget_set_can_default(gCloseButton, TRUE);
   g_signal_connect(gCloseButton, "clicked", G_CALLBACK(CloseClicked), 0);
 
   gRestartButton = 0;
-  if (restartArgs.size() > 0) {
+  if (!restartArgs.empty()) {
     gRestartButton = gtk_button_new_with_label(gStrings[ST_RESTART].c_str());
     gtk_box_pack_start(GTK_BOX(buttonBox), gRestartButton, FALSE, FALSE, 0);
     gtk_widget_set_can_default(gRestartButton, TRUE);
     g_signal_connect(gRestartButton, "clicked", G_CALLBACK(RestartClicked), 0);
   }
 
   gtk_widget_grab_focus(gSubmitReportCheck);