Properly construct 'less than' sentences

components/browsing_data_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <grit-part>
   <!-- Clear Browsing Data counters-->
   <message name="IDS_CLEAR_BROWSING_DATA_CALCULATING" desc="A text that is shown while the data volume is being counted.">
     Calculating...
   </message>
   <message name="IDS_DEL_BROWSING_HISTORY_COUNTER" desc="A counter showing how many items of browsing history the user has.">
     {COUNT, plural,
      =0 {None}
      =1 {1 item}
      other {# items}}
   </message>
   <message name="IDS_DEL_BROWSING_HISTORY_COUNTER_SYNCED" desc="A counter showing the user how many local items of browsing history they have, and informing them that more items might be synced. In the case when COUNT is zero, the counter only mentions existence of synced items.">
     {COUNT, plural,
      =0 {At least 1 item on synced devices}
      =1 {1 item (and more on synced devices)}
      other {# items (and more on synced devices)}}
   </message>
   <message name="IDS_DEL_CACHE_COUNTER_UPPER_ESTIMATE" desc="A counter showing that the user has less than X megabytes of cache. The value X will be substituted.">
     Less than <ph name="UPPER_ESTIMATE">$1<ex>328 MB</ex></ph>
   </message>
   <message name="IDS_DEL_CACHE_COUNTER_ALMOST_EMPTY" desc="A counter showing that the user's cache is almost empty, having less than 1 MB of data.">
     Less than 1 MB
   </message>
-  <message name="IDS_DEL_CACHE_COUNTER_ALMOST_EMPTY_BASIC" desc="Text showing that the user has less than 1 MB of data. It will be included in the sentence 'Frees up $1.'">
-    less than 1 MB
+  <message name="IDS_DEL_CACHE_COUNTER_BASIC" desc="A counter showing the size of the users's cache including 'x MB' as $1 and explaining that the cache is used to speed up the loading of websites.">
+    Frees up <ph name="SIZE">$1<ex>328 MB</ex></ph>. Some sites may load more slowly on your next visit.
   </message>
-  <message name="IDS_DEL_CACHE_COUNTER_BASIC" desc="A counter showing the size of the users's cache including either 'x MB' or 'less than x MB' as $1 and explaining that the cache is used to speed up the loading of websites.">
-    Frees up <ph name="SIZE">$1<ex>328 MB</ex></ph>. Some sites may load more slowly on your next visit.
+  <message name="IDS_DEL_CACHE_COUNTER_UPPER_ESTIMATE_BASIC" desc="A counter showing an upper estimate of the size of the users's cache including 'x MB' as $1 and explaining that the cache is used to speed up the loading of websites.">

[msramek, 2017/06/09 14:15:10]

The translation console will show a [SIZE] placeholder rather than $1. I would
say something like

"[...] showing an upper estimate of the user's cache. The estimate (e.g. "328
MB" will be substituted). [...]"

+    Frees up less than <ph name="SIZE">$1<ex>328 MB</ex></ph>. Some sites may load more slowly on your next visit.
+  </message>
+  <message name="IDS_DEL_CACHE_COUNTER_ALMOST_EMPTY_BASIC" desc="A counter showing that the user's cache is almost empty and explaining that the cache is used to speed up the loading of websites.">
+    Frees up less than 1 MB. Some sites may load more slowly on your next visit.
   </message>
   <message name="IDS_DEL_PASSWORDS_COUNTER" desc="A counter showing how many passwords the user has.">
     {COUNT, plural,
      =0 {None}
      =1 {1 password}
      other {# passwords}}
   </message>
   <message name="IDS_DEL_PASSWORDS_COUNTER_SYNCED" desc="A counter showing how many passwords the user has and that they are synced.">
     {COUNT, plural,
      =0 {None}
@@ skipping 76 matching lines @@
      =1 {and 1 more}
      other {and # more}}
   </message>
   <message name="IDS_DEL_MEDIA_LICENSES_COUNTER_GENERAL_COMMENT" desc="A static message shown in the Clear Browsing Data dialog explaining to the user that clearing media licenses will result in the user being unable to play some protected content">
     You may lose access to protected content from some sites.
   </message>
   <message name="IDS_DEL_MEDIA_LICENSES_COUNTER_SITE_COMMENT" desc="A message shown in the Clear Browsing Data dialog explaining to the user that clearing media licenses will result in the user being unable to play some protected content from at least one specific web site">
      You may lose access to protected content from <ph name="SITE">$1<ex>youtube.com</ex></ph> and some other sites.
   </message>
 </grit-part>